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Liberal_in_LA

(44,397 posts)
Fri Sep 11, 2015, 04:05 AM Sep 2015

12 question science test. 6% get all right.

http://www.pewresearch.org/quiz/science-knowledge/


The public opinion and research organization quizzed a representative sample of U.S. adults on geology, physics and astronomy, among other topics. Out of 12 questions, the test-takers answered 7.9 correctly, on average. That’s a score of 66%.


Only 6% of the 3,278 test-takers answered all 12 questions correctly. Twenty-six percent missed only one or two questions, and an additional 27% missed three or four.

At the other end of the spectrum, only 1% of those surveyed missed 11 of the questions, 2% missed 10 and 3% missed nine. (Want to see how you'd fare? Take the quiz here.)

The more time people had spent in school, the better they did on the quiz. For instance, those who had earned some type of graduate degree scored an average of 9.5, while those who didn’t make it past high school averaged only 6.8 correct answers.

http://www.latimes.com/science/sciencenow/la-sci-sn-science-quiz-americans-pew-20150909-story.html
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12 question science test. 6% get all right. (Original Post) Liberal_in_LA Sep 2015 OP
I missed one.... peacebird Sep 2015 #1
me too.. the boiling water one Liberal_in_LA Sep 2015 #2
Same here.... peacebird Sep 2015 #3
Same here. TDale313 Sep 2015 #6
I got that one right TubbersUK Sep 2015 #11
I always remember my gases because of the naming. Erich Bloodaxe BSN Sep 2015 #73
I like it - very useful TubbersUK Sep 2015 #94
I remembered because I've camped LibertyLover Sep 2015 #145
That's the one I missed as well - also, astrology is not science oberliner Sep 2015 #55
Neither bmbmd Sep 2015 #179
Same. Agschmid Sep 2015 #62
Only one that I missed too. NuclearDem Sep 2015 #81
Missed the boiling question as well Mike Daniels Sep 2015 #89
Same, though I did randomly guess on the sound one. Lancero Sep 2015 #119
here here. only one. never think about it near sea level. nt Ilsa Sep 2015 #193
Me too - the one about sound. KentuckyWoman Sep 2015 #16
That was the one I missed. nt tblue37 Sep 2015 #42
Same here Scootaloo Sep 2015 #178
me too restorefreedom Sep 2015 #83
The magnifying glass one KamaAina Sep 2015 #146
That's the only one I missed. n/t A HERETIC I AM Sep 2015 #165
Me, Too Leith Sep 2015 #177
That was the one I missed also. nt Mojorabbit Sep 2015 #203
I got 10 of 12 Skittles Sep 2015 #4
.. Liberal_in_LA Sep 2015 #5
Did you miss the sound and boiling water ones? I would imagine those would be the ones more tblue37 Sep 2015 #44
Those are exactly the two I missed. n/t Whiskeytide Sep 2015 #86
12/12. You scored better than 94% of the public and the same as 6%. Solly Mack Sep 2015 #7
.. Liberal_in_LA Sep 2015 #10
congrats, sincerely :) steve2470 Sep 2015 #97
I got a perfect score as well! bullwinkle428 Sep 2015 #100
What a team we'd make rock Sep 2015 #121
nice catch re the names! renate Sep 2015 #123
Ditto. n/t X_Digger Sep 2015 #200
10 out of 12 for me TubbersUK Sep 2015 #8
#10 doesn't really have a correct answer listed Fumesucker Sep 2015 #9
It CAN, but it ISN'T, generally. Spider Jerusalem Sep 2015 #15
I got 100%, I knew the answer to pick but it's not completely correct Fumesucker Sep 2015 #19
I think you have a reading comprehension issue Spider Jerusalem Sep 2015 #21
Uranium isn't *needed* for nuclear power although it is for nuclear bombs Fumesucker Sep 2015 #22
Yes, it is *needed* for nuclear power. Spider Jerusalem Sep 2015 #23
I've had a diesel car Fumesucker Sep 2015 #24
Post removed Post removed Sep 2015 #25
Well, the question was Kelvin Mace Sep 2015 #154
It does have a correct answer listed, because it's a multiple choice question muriel_volestrangler Sep 2015 #34
I'm a bit embarrassed I missed that one, good catch. Fumesucker Sep 2015 #43
Regarding the cell phone calls.. DCBob Sep 2015 #141
Hmm - is a call a call before any sound has been received? muriel_volestrangler Sep 2015 #144
It is a bit misleading and clearly they were trying to make that question tricky. DCBob Sep 2015 #147
A call without actually connecting can be a form of communication - jonno99 Sep 2015 #160
Plus I'm pretty sure you need CO2 to build a nuclear reactor (nt) Recursion Sep 2015 #58
So can Pu, or theoretically any fissile isotope.. sir pball Sep 2015 #101
Right, that one was a little outdated Warpy Sep 2015 #180
11 of 12, dang magnification question tripped me up nt steve2470 Sep 2015 #12
the water boiling one tripped me up Skittles Sep 2015 #17
It doesn't take longer to boil water at higher altitude, it takes longer to cook Fumesucker Sep 2015 #20
I have a relatively expensive cooking thermometer madokie Sep 2015 #39
Also 11 of 12, missed the magnification one. Scuba Sep 2015 #47
no offense lol but I'm glad I have company in this lol steve2470 Sep 2015 #48
That was the one I missed, too. hifiguy Sep 2015 #184
That one slowed me down, till I remembered ...... dixiegrrrrl Sep 2015 #59
I got all 12. mahatmakanejeeves Sep 2015 #113
The magnification one was easy for me thanks to the Boy Scouts B Calm Sep 2015 #130
I also got 11 out of 12 and got the same question wrong. smirkymonkey Sep 2015 #95
Same here. All right except the magnification question. Xithras Sep 2015 #157
Oh, hell yes! yuiyoshida Sep 2015 #13
less atmospheric pressure = youceyec Sep 2015 #35
went to University of California, Berkeley! yuiyoshida Sep 2015 #38
12/12 (n/t) Spider Jerusalem Sep 2015 #14
Question 13: What percentage of scientist consider themselves to be republican? uponit7771 Sep 2015 #18
12/12 quaker bill Sep 2015 #26
12/12. NutmegYankee Sep 2015 #27
I got 10 of 12. murielm99 Sep 2015 #28
Water wrong 11/12 LiberalArkie Sep 2015 #29
12 out of 12 Trailrider1951 Sep 2015 #30
The question about tides is unacceptable as a question (so, spoiler in this post) muriel_volestrangler Sep 2015 #31
Well, then you get into the whole pedantry thing again. Frank Cannon Sep 2015 #37
Some of the objections (mine about sound waves, Fumesucker's about thorium) might be 'pedantry' muriel_volestrangler Sep 2015 #67
There would still be a tidal bulge on a non-rotating earth Recursion Sep 2015 #56
Ocean tides are generally held to be the change in water level, or current speed muriel_volestrangler Sep 2015 #63
No, because you can remove the rotation of Earth and still have tides greyl Sep 2015 #96
The question asked "the main way that ocean tides are created" muriel_volestrangler Sep 2015 #104
Right, but the rotation of Earth on its axis isn't necessary, greyl Sep 2015 #125
and the presence of the Moon is not necessary muriel_volestrangler Sep 2015 #142
But it's one of 3 choices for the Main way tides are created, greyl Sep 2015 #168
Exactly - neither the Moon nor the rotation of the Earth are the 'main' way muriel_volestrangler Sep 2015 #171
I completely agree with you. That was the only one I "missed" and I dispute it. Jim Lane Sep 2015 #133
I see that as the reason for the timing/interval of the tides, not their existence altogther. greyl Sep 2015 #167
The question asked about neither their timing, nor magnitude muriel_volestrangler Sep 2015 #172
But if the question is about their existence altogether then there are two right answers. Jim Lane Sep 2015 #174
The whole question's nonsense. NuclearDem Sep 2015 #82
Yeah I got stuck on that one too...my oceanography prof went nuts if somebody said "Moon's gravity MindPilot Sep 2015 #106
I got 12 out of 12. Some questions had answers that were close to correct TexasProgresive Sep 2015 #32
That graph had no information about years--only about sugar consumption and cavities. tblue37 Sep 2015 #41
Put me in that 6%. hobbit709 Sep 2015 #33
12 of 12 madokie Sep 2015 #36
SPOILER ALERT! ANSWER SPOILER AT END OF MESSAGE. tblue37 Sep 2015 #40
You and me both... dixiegrrrrl Sep 2015 #60
I struggled w the sound question. guessed right Liberal_in_LA Sep 2015 #199
Stupid magnifying glass. AngryAmish Sep 2015 #45
7 I suck at science underpants Sep 2015 #46
I got them all, but had to think a bit for the water question. nt. polly7 Sep 2015 #49
Wow, that's all elementary-school level TransitJohn Sep 2015 #50
12/12... orwell Sep 2015 #51
10 of 12 LiberalElite Sep 2015 #52
Are these questions racially biased? oberliner Sep 2015 #53
The word you're looking for is "privilege", I think (nt) Recursion Sep 2015 #57
Did you look at the questions? Maybe the answer is that white people have higher pnwmom Sep 2015 #65
I'm not sure what the answer is oberliner Sep 2015 #176
The same question could be asked of gender. lumberjack_jeff Sep 2015 #112
True, and how the gap varied with the question is interesting too. MindPilot Sep 2015 #136
STEM is big with girls oberliner Sep 2015 #175
I have some issues with #2 Recursion Sep 2015 #54
I think they're OK on that particular point muriel_volestrangler Sep 2015 #70
Nope, radio waves are not a type of light waves dumbcat Sep 2015 #148
10 bigwillq Sep 2015 #61
Maybe I'm not in the .01%... PJMcK Sep 2015 #64
I got 503 out of 12. Erich Bloodaxe BSN Sep 2015 #66
I Got The Same Error The First Time ProfessorGAC Sep 2015 #69
Error 503 Service Unavailable ileus Sep 2015 #68
They quiz on science and then use "race" as a cut on the data?! Race is NOT a biologically valid GreatGazoo Sep 2015 #71
I'd have to take the quiz again, but I don't think they actually asked for a 'science' Erich Bloodaxe BSN Sep 2015 #72
I still have the result up on a separate tab. The question was: GreatGazoo Sep 2015 #74
I agree that the context looks bad Erich Bloodaxe BSN Sep 2015 #75
It seemed obvious that that's what the quizmakers were getting at. Frank Cannon Sep 2015 #76
Well, best is somewhat iffy as others have pointed out. Erich Bloodaxe BSN Sep 2015 #78
Yup. Frank Cannon Sep 2015 #87
12 out of 12 Shrek Sep 2015 #77
I missed the boiling water and the magnifying glass. mnhtnbb Sep 2015 #79
missed those too nadine_mn Sep 2015 #169
I got 10/12. phylny Sep 2015 #80
8th grade test. Rex Sep 2015 #84
12/12 Mendocino Sep 2015 #85
Missed nykym Sep 2015 #88
OH WELL Mr Dixon Sep 2015 #90
Got 100% HOWEVER- if you look at the demographic breakdown vs questions most got wrong KittyWampus Sep 2015 #91
I got 12, but why the fuck is there a question about astrology on a science quiz?... SidDithers Sep 2015 #92
I was quite shocked by that question as well. trotsky Sep 2015 #98
There is an in-depth article TacoD Sep 2015 #111
Precisely! If you don't know the difference between astrology and astronomy . . . hatrack Sep 2015 #124
except the question made astology a science hfojvt Sep 2015 #158
Because when I was in High School I signed up for a Community College class on Astronomy Live and Learn Sep 2015 #134
excellent point, that kinda shocked me nt steve2470 Sep 2015 #188
12 of 12 PowerToThePeople Sep 2015 #93
got all 12.... Takket Sep 2015 #99
It's official - DU has become facebook tjwash Sep 2015 #102
12/12 urbanhermit Sep 2015 #103
12 for 12 truebluegreen Sep 2015 #105
12/12 n/t MosheFeingold Sep 2015 #107
Hope Bill-O takes the quiz: "Tide comes in, tide goes out, you can't explain that!" hatrack Sep 2015 #108
Got 10 out of 12. Waldorf Sep 2015 #109
HS education + 30 years of NOVA + $15 in library late fees = Better than most post-grads. lumberjack_jeff Sep 2015 #110
. libodem Sep 2015 #131
12/12...too easy Baclava Sep 2015 #114
12/12 - I guess that's to be expected since I've been characterized Ms. Toad Sep 2015 #115
That's a pretty easy test. tabasco Sep 2015 #116
This is pretty scary. Because I'm not that smart Hassin Bin Sober Sep 2015 #117
12 but those are general knowledge questions though. Xyzse Sep 2015 #118
12/12, but had to guess on the cell phone JustABozoOnThisBus Sep 2015 #120
did I miss a test ? olddots Sep 2015 #122
I got 11 out of 12. Missed the magnifying glass question. yardwork Sep 2015 #126
I answered 10 of 12 questions correctly. Why are men doing better B Calm Sep 2015 #127
because many of us gals were discouraged from all things math / science Skittles Sep 2015 #191
I missed the boiling point question libodem Sep 2015 #128
Got them all. Aerows Sep 2015 #129
I got 100% correct! n/t RKP5637 Sep 2015 #132
12/12 Agnosticsherbet Sep 2015 #135
12/12. You scored better than 94% of the public and the same as 6%. n/t ColesCountyDem Sep 2015 #137
12 of 12.. pretty easy.. although I did have to think a bit on a couple of them. DCBob Sep 2015 #138
12 out of 12 here! Dream Girl Sep 2015 #139
11/12. Demographic breakdown of male vs. female is very disturbing taught_me_patience Sep 2015 #140
The questions must be gender biased dumbcat Sep 2015 #164
I got all of them correct LibertyLover Sep 2015 #143
12/12 oswaldactedalone Sep 2015 #149
10 of 12. nt Zorra Sep 2015 #150
not to gloat....ok yes to gloat got all 12 dembotoz Sep 2015 #151
One wrong. Skinner Sep 2015 #152
will there be a test about the test ? olddots Sep 2015 #153
That test was fairly pedestrian Brother Buzz Sep 2015 #155
36/50 hifiguy Sep 2015 #185
38/50 Brother Buzz Sep 2015 #187
Yes, this one was more challenging Trailrider1951 Sep 2015 #192
Ouch.. 34. DCBob Sep 2015 #204
12 jonno99 Sep 2015 #156
You scored better than 94% of the public and the same as 6%....nt Wounded Bear Sep 2015 #159
12 of 12 correct Bettie Sep 2015 #161
12 out of 12. longship Sep 2015 #162
12 for 12 Boomer Sep 2015 #163
I missed the one about the property of a sound wave. nt DawgHouse Sep 2015 #166
I missed one. Blue_In_AK Sep 2015 #170
12/12 Act_of_Reparation Sep 2015 #173
11/12 and I'm not that great when it comes to science JI7 Sep 2015 #181
11 out of 12 - missed the light beam through magnifying glass question samsingh Sep 2015 #182
magnifying glasses are used to start fires. I assumed that meant the beams had to Liberal_in_LA Sep 2015 #186
logical samsingh Sep 2015 #189
11/12. Looked at the magnifying glass question hifiguy Sep 2015 #183
All 12 correct Gothmog Sep 2015 #190
Hey, I was a Fine Arts major...so whaddya expect... CTyankee Sep 2015 #194
"You answered 12 of 12 questions correctly." mike_c Sep 2015 #195
I missed one because I got bored with the grade school science alphafemale Sep 2015 #196
12 out of 12 Spirochete Sep 2015 #197
12/12--but I wonder what the results are for, like, Britain MisterP Sep 2015 #198
I didnt expect astrology on a science test. WDIM Sep 2015 #201
I missed one. The one about the magnifiying glass. drm604 Sep 2015 #202

TubbersUK

(1,517 posts)
11. I got that one right
Fri Sep 11, 2015, 04:26 AM
Sep 2015

but only because I'd just read an article about how difficult it is to make a good cup of tea at altitude.

Erich Bloodaxe BSN

(14,733 posts)
73. I always remember my gases because of the naming.
Fri Sep 11, 2015, 08:19 AM
Sep 2015

'Boyle's law'. You compare the relative pressure differential, and you know where gas expands most easily

LibertyLover

(4,788 posts)
145. I remembered because I've camped
Fri Sep 11, 2015, 12:57 PM
Sep 2015

in Colorado and I remember the water boiling sooner than I had expected and not cooking what I was trying to make correctly.

 

oberliner

(58,724 posts)
55. That's the one I missed as well - also, astrology is not science
Fri Sep 11, 2015, 07:24 AM
Sep 2015

That question should not have been included on this quiz.

Mike Daniels

(5,842 posts)
89. Missed the boiling question as well
Fri Sep 11, 2015, 09:59 AM
Sep 2015

Kind of guessed on the magnifying lens based on what seemed to make sense. The others were pretty obvious from my POV.

restorefreedom

(12,655 posts)
83. me too
Fri Sep 11, 2015, 09:43 AM
Sep 2015

the sound one. and i was going to put amplitude...grrr always go with your first answer

 

KamaAina

(78,249 posts)
146. The magnifying glass one
Fri Sep 11, 2015, 01:01 PM
Sep 2015


I imagine representatives from Yale will be waiting at my door this evening to confiscate my diploma.

Leith

(7,864 posts)
177. Me, Too
Fri Sep 11, 2015, 03:49 PM
Sep 2015

I was going on the fact that a magnifying glass makes the small look big, hence it takes light from the original size object and spreads it out to make it look bigger. How is that not correct?

tblue37

(68,436 posts)
44. Did you miss the sound and boiling water ones? I would imagine those would be the ones more
Fri Sep 11, 2015, 07:00 AM
Sep 2015

people would struggle with. ((My error was the sound one.)

Solly Mack

(96,943 posts)
7. 12/12. You scored better than 94% of the public and the same as 6%.
Fri Sep 11, 2015, 04:23 AM
Sep 2015

Science Knowledge Quiz Results

You answered 12 of 12 questions correctly.

See below how your results compare with the 3,278 randomly sampled adults that took part in our national survey and review how you responded to each question. For more findings from the survey, read "A Look at What the Public Knows and Does Not Know About Science."


You scored better than 94% of the public and the same as 6%.






































bullwinkle428

(20,662 posts)
100. I got a perfect score as well!
Fri Sep 11, 2015, 10:26 AM
Sep 2015

Now I have science backing me up when I roll my eyes at "moran" Freeper-types, snake-handlers, neo-Confederate 8th-grade dropouts, and Trump supporters!

Fumesucker

(45,851 posts)
9. #10 doesn't really have a correct answer listed
Fri Sep 11, 2015, 04:23 AM
Sep 2015

I got 100% but for #10 thorium can also be used for nuclear power in a molten salt medium reactor.

 

Spider Jerusalem

(21,786 posts)
15. It CAN, but it ISN'T, generally.
Fri Sep 11, 2015, 04:54 AM
Sep 2015

The answer is "uranium"...which is used in breeder reactors to produce plutonium through neutron bombardment; U-238 has a half-life of 4.5 billion years, and thus is relatively abundant. Pu-239 has a half-life of 24,000 years, and only exists on earth in trace amounts; we have to make it.

Fumesucker

(45,851 posts)
19. I got 100%, I knew the answer to pick but it's not completely correct
Fri Sep 11, 2015, 05:00 AM
Sep 2015

Do you suppose that someone who knows of thorium reactors doesn't also know about the relationship between uranium and plutonium?

 

Spider Jerusalem

(21,786 posts)
21. I think you have a reading comprehension issue
Fri Sep 11, 2015, 05:05 AM
Sep 2015

it's correct as presented. Uranium is needed to make nuclear energy, as currently implemented...there are no large-scale thorium reactors anywhere, nuclear powers don't have thorium bombs, you can't make plutonium without uranium, therefore uranium is needed, QED.

Fumesucker

(45,851 posts)
22. Uranium isn't *needed* for nuclear power although it is for nuclear bombs
Fri Sep 11, 2015, 05:15 AM
Sep 2015

Uranium is the substance that is most widely used in reactors, overwhelmingly so in fact, but it's not totally necessary.

I'll point out that all nuclear reactors are actually running on stored gravitational energy since it is the gravitation powered collapse of supernovae that creates all elements heavier than iron.

Notice that I manged to reply to you without engaging in personal attacks.



 

Spider Jerusalem

(21,786 posts)
23. Yes, it is *needed* for nuclear power.
Fri Sep 11, 2015, 05:28 AM
Sep 2015

Why is it needed for nuclear power? Because existing implementations of nuclear power utilise plutonium/enriched uranium reactors. Not thorium reactors. Your argument is kind of like saying "but we don't need gasoline, we can just burn vegetable oil in diesel engines" when all the cars have gasoline engines.

I haven't engaged in any personal attacks (although I am beginning to think your issues go deeper than reading comprehension).

Response to Fumesucker (Reply #24)

 

Kelvin Mace

(17,469 posts)
154. Well, the question was
Fri Sep 11, 2015, 01:39 PM
Sep 2015

which was needed for nuclear energy AND nuclear weapons. "Uranium" is the only answer that meets the criteria of the question.

muriel_volestrangler

(106,211 posts)
34. It does have a correct answer listed, because it's a multiple choice question
Fri Sep 11, 2015, 06:24 AM
Sep 2015

If it had been an open-ended question, then thorium would be an acceptable answer. But uranium is used too, and it's the only one of the options listed that's used. And, as pointed out, it describes the current practical situation.

#2 is a bit more of a problem - sound waves are used to make cellphone calls, between your mouth and the microphone, and between the speaker and your ear. A more accurate question could be to ask 'used to send text messages'.

Fumesucker

(45,851 posts)
43. I'm a bit embarrassed I missed that one, good catch.
Fri Sep 11, 2015, 06:59 AM
Sep 2015


In the case of nuclear power I wasn't saying it was the wrong answer, of course it's the correct answer in the context of a multiple choice question however it's only a partial answer to the question.

I spent a lot of time teaching and tutoring my kids and I found asking unambiguous questions more difficult than I would have guessed beforehand, more than one time I got a correct answer that I did not at all anticipate. It was also interesting that adults could seldom restrain themselves from blurting out answers to the questions I was asking my kids if any were around at the time.



DCBob

(24,689 posts)
141. Regarding the cell phone calls..
Fri Sep 11, 2015, 12:51 PM
Sep 2015

Radio waves are required to make and receive the call.. sound is not needed. One calls without making a sound and receives the call without sound. Its only after the connection is made are sound waves needed.

muriel_volestrangler

(106,211 posts)
144. Hmm - is a call a call before any sound has been received?
Fri Sep 11, 2015, 12:57 PM
Sep 2015

'Call' comes from the word involving sound. But a 'missed call' can involve no sound, so you may be right. I do regard my point on that question as pedantry.

jonno99

(2,620 posts)
160. A call without actually connecting can be a form of communication -
Fri Sep 11, 2015, 01:57 PM
Sep 2015

Like: "call me when you get in so I know that you made it home - let it ring three times and I'll know you're OK..."

Pedantry? I resemble that!

sir pball

(5,340 posts)
101. So can Pu, or theoretically any fissile isotope..
Fri Sep 11, 2015, 10:27 AM
Sep 2015

..but since it's multiple-choice not essay, of course it's U - indulging my inner pedant, I'd say since it is such a rigidly defined question there is an absolute Correct Answer :p

eta 12/12, thank god or I'd be committing seppuku

Warpy

(114,615 posts)
180. Right, that one was a little outdated
Fri Sep 11, 2015, 03:57 PM
Sep 2015

but none of the other answers was correct except uranium.

Yeah, I'm a nerd. I wear the label proudly.

Skittles

(171,710 posts)
17. the water boiling one tripped me up
Fri Sep 11, 2015, 04:58 AM
Sep 2015

I knew it took longer to boil water at higher altitudes but.....

Fumesucker

(45,851 posts)
20. It doesn't take longer to boil water at higher altitude, it takes longer to cook
Fri Sep 11, 2015, 05:04 AM
Sep 2015

Longer to cook because the temperature is lower at the boil so cooking is slower. Water actually boils slightly faster at altitude because you don't have to get it quite so hot before it starts boiling.

/Pedant preparing for his ass kicking..

madokie

(51,076 posts)
39. I have a relatively expensive cooking thermometer
Fri Sep 11, 2015, 06:54 AM
Sep 2015

and when I check it at the boiling point it shows that the water reached 210.5 degrees. I'm thinking that surely I didn't pay all this money for a flawed thermometer so I go to google and sure enough at my altitude of 750 ft the boiling point of water is 210.5 degrees.

http://www.engineeringtoolbox.com/boiling-points-water-altitude-d_1344.html

steve2470

(37,481 posts)
48. no offense lol but I'm glad I have company in this lol
Fri Sep 11, 2015, 07:10 AM
Sep 2015

I was feeling a bit lonely being the only one to miss that one! Have a good day.

dixiegrrrrl

(60,160 posts)
59. That one slowed me down, till I remembered ......
Fri Sep 11, 2015, 07:29 AM
Sep 2015

ants.
and setting paper on fire in the backyard with a magnifying glass.

mahatmakanejeeves

(69,850 posts)
113. I got all 12.
Fri Sep 11, 2015, 11:02 AM
Sep 2015

I, too, had to think about ants when thinking about the lens and light rays. Yeah, you could quibble about cell phones and uranium.

 

B Calm

(28,762 posts)
130. The magnification one was easy for me thanks to the Boy Scouts
Fri Sep 11, 2015, 12:02 PM
Sep 2015

and using magnifying glass to start a fire. Boiling water threw me.

 

smirkymonkey

(63,221 posts)
95. I also got 11 out of 12 and got the same question wrong.
Fri Sep 11, 2015, 10:16 AM
Sep 2015

I answered #2 instead of the correct answer which was #3.

Xithras

(16,191 posts)
157. Same here. All right except the magnification question.
Fri Sep 11, 2015, 01:52 PM
Sep 2015

And considering the number of telescopes I own, there's no real excuse for me to have missed it. I'll blame my aging brain.

yuiyoshida

(45,415 posts)
13. Oh, hell yes!
Fri Sep 11, 2015, 04:41 AM
Sep 2015



The one I missed was about boiling water in Denver and LA...i said both, but it was Denver!
 

youceyec

(394 posts)
35. less atmospheric pressure =
Fri Sep 11, 2015, 06:25 AM
Sep 2015

less energy needed for gas to form.

I got 11. Missed the moon one. One of the easiest ones :/

32 m/college degree.

yuiyoshida

(45,415 posts)
38. went to University of California, Berkeley!
Fri Sep 11, 2015, 06:54 AM
Sep 2015

But I never got to graduate, I ran out of funds, and I didn't want to borrow it and be in life time debt, like they are now. I wouldn't mind going back, but it might be not for years later.

uponit7771

(93,532 posts)
18. Question 13: What percentage of scientist consider themselves to be republican?
Fri Sep 11, 2015, 04:58 AM
Sep 2015

6% - http://www.huffingtonpost.com/2009/07/10/only-six-percent-of-scien_n_229382.html

Scientist have to deal with facts

I got 12 out of 12...

Nuke question is tricky...

muriel_volestrangler

(106,211 posts)
31. The question about tides is unacceptable as a question (so, spoiler in this post)
Fri Sep 11, 2015, 06:07 AM
Sep 2015

"Which of these is the main way that ocean tides are created?"

a: The rotation of the earth on its axis

Well, yes, the cycle of the tides does come from the earth rotating with respect to the moon and sun. That's why there are just over 12 hours between high tides. If the same side of the earth always faced towards the moon (eg as Pluto does with Charon), you wouldn't see the tide created by the moon, just a smaller one from the changing relative position of the sun.

b: The gravitational pull of the moon

Well, yes, that is the dominant gravitational force involved.

Pew failed on that question. I guess they want (b) as the answer, but (a) is valid too.

Frank Cannon

(7,570 posts)
37. Well, then you get into the whole pedantry thing again.
Fri Sep 11, 2015, 06:42 AM
Sep 2015

I think the intent of the question was to weed out the Bill O'Reillys of the world who have no clue about what is overwhelmingly responsible for the effect of the Earth 's tides.

muriel_volestrangler

(106,211 posts)
67. Some of the objections (mine about sound waves, Fumesucker's about thorium) might be 'pedantry'
Fri Sep 11, 2015, 07:50 AM
Sep 2015

but this one is at the heart of the question. You really can't talk about the tides without mentioning how often they happen, and that comes from the earth's rotation. What they should have done is give a different wrong answer; or they should have mentioned 'force' in the question, and had the wrong answer being about 'centrifugal force'.

Recursion

(56,582 posts)
56. There would still be a tidal bulge on a non-rotating earth
Fri Sep 11, 2015, 07:25 AM
Sep 2015

It just wouldn't "move" with respect to the coast.

muriel_volestrangler

(106,211 posts)
63. Ocean tides are generally held to be the change in water level, or current speed
Fri Sep 11, 2015, 07:44 AM
Sep 2015

A static tidal bulge wouldn't be noticed until very accurate measurement showed the earth to be not a perfect spheroid. But, as I said, with the relative position of the sun and the moon, you'd get some form of tide anyway, just with a very different period. The rotation of the earth remains a vital part of determining how 'ocean tides are created', which is why it's a bad question.

greyl

(23,024 posts)
96. No, because you can remove the rotation of Earth and still have tides
Fri Sep 11, 2015, 10:19 AM
Sep 2015

as long as the moon still orbits Earth.

muriel_volestrangler

(106,211 posts)
104. The question asked "the main way that ocean tides are created"
Fri Sep 11, 2015, 10:33 AM
Sep 2015

You could also still have tides without the Moon; the tidal effect of the Sun is quite noticeable in the difference between spring and neap tides. The question asks you to compare things that are not directly comparable - the rotation of the Earth, which is the main reason for the period of the tides; and 2 gravitational forces, of which the Moon provides the larger.

It's a poor question, because 2 of the answers are valid.

greyl

(23,024 posts)
125. Right, but the rotation of Earth on its axis isn't necessary,
Fri Sep 11, 2015, 11:47 AM
Sep 2015

so it gets ruled out as the main way. Still a lame test, yes. The astrology question alone rules it out as decent test.

muriel_volestrangler

(106,211 posts)
142. and the presence of the Moon is not necessary
Fri Sep 11, 2015, 12:53 PM
Sep 2015

because you'd still get easily noticeable tides, with high separated by 12 hours, just from the Sun. So, by your logic, you can rule of the Moon as the main way. The presence of the Sun isn't necessary (for tides), so by your logic you can rule out all three answers.

To get the tides anything like we do, you need both the rotation of the earth and the gravitational force of the Moon. Because the rotation and the Moon's gravity are not directly comparable, saying one is the 'main way' isn't really possible.

greyl

(23,024 posts)
168. But it's one of 3 choices for the Main way tides are created,
Fri Sep 11, 2015, 02:24 PM
Sep 2015

not the main "way" they are regular and predictable as they are.

muriel_volestrangler

(106,211 posts)
171. Exactly - neither the Moon nor the rotation of the Earth are the 'main' way
Fri Sep 11, 2015, 02:34 PM
Sep 2015

so when both are presented as alternatives, it's a crappy question.

 

Jim Lane

(11,175 posts)
133. I completely agree with you. That was the only one I "missed" and I dispute it.
Fri Sep 11, 2015, 12:11 PM
Sep 2015

If the Earth didn't rotate on its axis, greyl is correct that we'd still have tides because of the orbiting Moon, but we'd have a tide twice a month instead of twice a day. The actual tides that we really have are dependent on the Earth's rotation.

Also, I'm pretty sure that if you let the Earth keep rotating but destroy the Moon, we'd still have twice-daily tides. They'd just be smaller than they are now.

greyl

(23,024 posts)
167. I see that as the reason for the timing/interval of the tides, not their existence altogther.
Fri Sep 11, 2015, 02:18 PM
Sep 2015

Their timing is a definitely an integral part of how we usually talk about tides, but I think the question was not asking about their interval.
A body could rotate or not, and still have tidal forces upon them by the presence of external bodies. A constant rotation simply does not create the presence of tides on a whole body, because those rotational forces are distributed fairly equally around the entire axis of rotation. (A bulge is not a tide) The unequalizer would be the external bodies.

muriel_volestrangler

(106,211 posts)
172. The question asked about neither their timing, nor magnitude
Fri Sep 11, 2015, 02:37 PM
Sep 2015

just their creation. That makes it a bad question.

 

Jim Lane

(11,175 posts)
174. But if the question is about their existence altogether then there are two right answers.
Fri Sep 11, 2015, 02:40 PM
Sep 2015

A rotating Earth would have tides with either the Sun's gravity or the Moon's.

That was why I picked the rotation answer. The difference between the Moon's gravity and the Sun's is merely a difference in degree. The difference between either of them and rotation is a difference in kind.

You write, "A constant rotation simply does not create the presence of tides on a whole body...." That's true, but only of a body that's rotating out in interstellar space with no star nearby. There are few or no such bodies known to science. If a body is in a solar system and rotating, then it will have tides (provided of course it's not of uniform rigid composition -- I don't think Mercury has tides).

Perhaps we can compromise by agreeing it's a lousy question? A test intended to cover basic scientific knowledge shouldn't be subject to such wrangling. If they wanted the right answer to be the Moon's gravity, then the other answers should have been things like volcanoes, earthquakes, sunspots, or other fakeouts that might trap the ignorant but be inarguably wrong.

 

MindPilot

(12,693 posts)
106. Yeah I got stuck on that one too...my oceanography prof went nuts if somebody said "Moon's gravity
Fri Sep 11, 2015, 10:35 AM
Sep 2015

Last edited Fri Sep 11, 2015, 11:49 AM - Edit history (1)

caused the tides". If the moon's gravity was strong enough to lift an ocean-sized body of water, it would have already sucked everything else off the Earth's surface. ETA: or more accurately, since the Moon is somewhat smaller than the Earth, the Moon would have pulled itself into the Earth. It is the Moon's mass, not its gravity that affects the tides.

Imagine the Earth and moon connected like a barbell so they rotate together within the Sun's gravity field, but since the ends of the barbell are different sizes that motion is lopsided. It is the combination of the Earth's mass and the Moon's mass along with the rotation of the Earth all moving within the gravity field of the Sun that makes the tides.

For the final exam in the Oceanography class, we were each to pretend we were the science officer on a Galaxy class starship. We were approaching a uncharted class M planet with multiple moons. The assignment was to assess among other things the tidal movements on the planet.



12 out of 12.

TexasProgresive

(12,730 posts)
32. I got 12 out of 12. Some questions had answers that were close to correct
Fri Sep 11, 2015, 06:14 AM
Sep 2015

It is like what I've heard about the Cisco certification test which is rumored to have several correct answers but to get it right you must choose the most correct answer. I pondered long over the answer for the sugar/cavities question, finally choosing the correct answer.

tblue37

(68,436 posts)
41. That graph had no information about years--only about sugar consumption and cavities.
Fri Sep 11, 2015, 06:57 AM
Sep 2015

IOW, the only answer anywhere near the correct one could be excluded because labels indicating yearly changes were not shown on the graph.

madokie

(51,076 posts)
36. 12 of 12
Fri Sep 11, 2015, 06:33 AM
Sep 2015

You scored better than 94% of the public and the same as 6%.

12 Total number of questions answered correctly
These percentages only reflect the 3,278 adults that took part in the national survey; online quiz results are not included in the sample.

tblue37

(68,436 posts)
40. SPOILER ALERT! ANSWER SPOILER AT END OF MESSAGE.
Fri Sep 11, 2015, 06:55 AM
Sep 2015

Last edited Fri Sep 11, 2015, 07:25 AM - Edit history (2)

I missed the one about which property of sound waves causes the loudness of a sound.

Apparently that question is one that stumped a *lot* of people, especially in my demographic category: whiite female, post-grad degrees, age 65.

The percentile rating is a bit fuzzy for me, though. Does the fact that only 6% scored better put me and the others in my 12% of 11/12 correct scorers in the 96th percentile, or (as I believe) are we in the 82nd percentile, since all 12% of us scored better than only 82% of responders, since we did not score better than each other?

I am rather horrified, though, since so many of those questions were covered even in *elementary school* science classes in the 1950s and early 1960s! (I was in K-6 from 1955-1961.) IOW, they are not exactly rocket science.

[font color = "red"] [font size = "+1"]SPOILER ALERT! ANSWER SPOILER BELOW!

SPOILER ALERT! ANSWER SPOILER BELOW!

**********************************************

STOP READING! STOP READING! ***** SPOILER ALERT! ANSWER SPOILER!

STOP READING! STOP READING! ***** SPOILER ALERT! ANSWER SPOILER

STOP READING! STOP READING! ***** SPOILER ALERT! ANSWER SPOILER[/font] [/font]
______________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________


Thinking of lightning and thunder, I guessed velocity or rate of change. I kind of remember the correct answer now from high school, but being 65, I am many decades away from that lesson, and being severely hearing-impaired means sound is sort of outside my wheelhouse.
 

oberliner

(58,724 posts)
53. Are these questions racially biased?
Fri Sep 11, 2015, 07:23 AM
Sep 2015

If not, why do white people have a higher percentage of correct answers than non-white people on every single question?

pnwmom

(110,261 posts)
65. Did you look at the questions? Maybe the answer is that white people have higher
Fri Sep 11, 2015, 07:49 AM
Sep 2015

educational levels in general?

I can't think of any questions that had a racial component but you can take the test and look for yourself.

 

oberliner

(58,724 posts)
176. I'm not sure what the answer is
Fri Sep 11, 2015, 03:45 PM
Sep 2015

I just saw that they included a chart with the results by demographic and that seemed striking.

 

lumberjack_jeff

(33,224 posts)
112. The same question could be asked of gender.
Fri Sep 11, 2015, 10:56 AM
Sep 2015

My takeaway is that we really do need to expand the reach of STEM education beyond only white boys.

 

MindPilot

(12,693 posts)
136. True, and how the gap varied with the question is interesting too.
Fri Sep 11, 2015, 12:20 PM
Sep 2015

A one-point gap between genders on the Astrology question to a 14-point gap on the Uranium question.

Recursion

(56,582 posts)
54. I have some issues with #2
Fri Sep 11, 2015, 07:24 AM
Sep 2015

Last edited Fri Sep 11, 2015, 07:58 AM - Edit history (1)

Radio waves are a type of light wave, so either answer should be OK.

muriel_volestrangler

(106,211 posts)
70. I think they're OK on that particular point
Fri Sep 11, 2015, 07:57 AM
Sep 2015

radio waves are a type of electromagnetic wave, as is light; but light is taken as meaning the visible part of the electromagnetic spectrum. We do sometimes say 'visible light' when we want to be absolutely clear, but most of the time we can say "there's no light coming from that object" when we know it is emitting infrared waves.

dumbcat

(2,160 posts)
148. Nope, radio waves are not a type of light waves
Fri Sep 11, 2015, 01:08 PM
Sep 2015

Both radio waves and light waves are types of electromagnetic waves, but they are in different parts of the electromagnetic spectrum.

Erich Bloodaxe BSN

(14,733 posts)
66. I got 503 out of 12.
Fri Sep 11, 2015, 07:50 AM
Sep 2015

Error 503 Service Unavailable
We're very sorry, but the page could not be loaded properly.

ProfessorGAC

(76,703 posts)
69. I Got The Same Error The First Time
Fri Sep 11, 2015, 07:57 AM
Sep 2015

I got all 12 but had to take the quiz twice to get my score.

GreatGazoo

(4,608 posts)
71. They quiz on science and then use "race" as a cut on the data?! Race is NOT a biologically valid
Fri Sep 11, 2015, 07:59 AM
Sep 2015

concept. And they left out Asian as an option there but it doesn't matter because, again,...

Most biologists and anthropologists do not recognize race as a biologically valid classification, in part because there is more genetic variation within groups than between them.


Would have been more interesting to use religious affiliation, church attendance, economic status or anything but race.

They also use "astrology" in their options for a discipline of science. Astrology is, of course, not science.

So for using race and astrology in a science quiz, I give the test makers 10 out of 12.

Erich Bloodaxe BSN

(14,733 posts)
72. I'd have to take the quiz again, but I don't think they actually asked for a 'science'
Fri Sep 11, 2015, 08:02 AM
Sep 2015

in the question about 'stars influencing behaviour'. Maybe knowing what's pseudoscience is also part of knowing science to them?

GreatGazoo

(4,608 posts)
74. I still have the result up on a separate tab. The question was:
Fri Sep 11, 2015, 08:23 AM
Sep 2015
Which of these terms is defined as the study of how the positions of stars and planets can influence human behavior?


I get your point about pseudoscience but by context they are positioning astrology as a science. Also, I don't think there is any actual study of planets versus behaviors involved, just creative writing of likable and ambiguous traits and aspirations.

Erich Bloodaxe BSN

(14,733 posts)
75. I agree that the context looks bad
Fri Sep 11, 2015, 08:26 AM
Sep 2015

but you can study all sorts of imaginary things. Heck, you can get entire college degrees in studying things that don't exist. Just look at Liberty U, and the rest of the Theology outfits.

Frank Cannon

(7,570 posts)
76. It seemed obvious that that's what the quizmakers were getting at.
Fri Sep 11, 2015, 08:30 AM
Sep 2015

Also, the amount of pedantic hair splitting in this thread is giving me a headache. God forbid that these people should ever have to take a professional certification exam where MOST of the questions are oriented around selecting the "best answer".

Erich Bloodaxe BSN

(14,733 posts)
78. Well, best is somewhat iffy as others have pointed out.
Fri Sep 11, 2015, 08:46 AM
Sep 2015

If they want you to select the 'best' answer, they have to provide the criteria on which they determine 'best'. That's the worst part of taking tests - when you know the subject matter in greater depth than the person taking the test or at least in greater depth than the answers for which they're shooting. I had a devil of a time with some of my nursing courses because I 'overthought' what the examiner was asking for, and had to learn to throttle back and go with what I considered more superficial answers. They liked to do a lot of 'what do you do first' questions, to try to drill certain responses to you, but then when you talked to them outside of the test, they would admit that in the 'real world', they actually wouldn't do it that way. Frustrating, but you end up having to figure out what they're trying to test for more than what is 'most right' in either a real world scenario or a technical nitpicky sort of way.

Frank Cannon

(7,570 posts)
87. Yup.
Fri Sep 11, 2015, 09:51 AM
Sep 2015

I'm a licensed clinician myself. I learned a long time ago not to "overthink" tests. Sucks that we are so often forced to play mind reader with the test designers, but it's really not that hard, if one knows the material and knows what it is that's important to know.

I really think there is such a thing as being too smart for your own good. I had joined Mensa at one time, but I quit after a few meetings when I found I didn't really relate to anyone there. Most of the people I interacted with, though undeniably smart, didn't seem functional enough to tie their own shoes.

Shrek

(4,428 posts)
77. 12 out of 12
Fri Sep 11, 2015, 08:30 AM
Sep 2015

None of these questions were difficult.

It's a little scary that over 2/3 of the participants couldn't even get to 80%.

mnhtnbb

(33,348 posts)
79. I missed the boiling water and the magnifying glass.
Fri Sep 11, 2015, 08:58 AM
Sep 2015

I remember from home ec class (back in middle school in the early '60's) there were length of time, temp,
baking adjustments due to altitude, but I couldn't remember what!

phylny

(8,818 posts)
80. I got 10/12.
Fri Sep 11, 2015, 09:08 AM
Sep 2015

Missed the one about boiling water and the magnifying glass.

I'm surprised I didn't fail. I sucked at science.

 

KittyWampus

(55,894 posts)
91. Got 100% HOWEVER- if you look at the demographic breakdown vs questions most got wrong
Fri Sep 11, 2015, 10:08 AM
Sep 2015

If you look at the chart that shows which questions most people got wrong, I think the results for the overall population aren't that bad…

The questions most got wrong were about light through a magnifying glass and loudness/amplitude… and boiling water at high altitudes.

Both those questions, especially the loudness one, might be tricky if you didn't retain much of your high school science.

SidDithers

(44,333 posts)
92. I got 12, but why the fuck is there a question about astrology on a science quiz?...
Fri Sep 11, 2015, 10:09 AM
Sep 2015

"Which of these terms is defined as the study of how the positions of stars and planets can influence human behavior?"

The position of the stars and planets don't influence human behaviour. Pretending that they do, and including this dumbass question on a quiz purportedly about science, lends legitimacy to the wholly discredited notion that astrology has any science behind it.



Sid

trotsky

(49,533 posts)
98. I was quite shocked by that question as well.
Fri Sep 11, 2015, 10:22 AM
Sep 2015

Seriously out of place on a science quiz.

TacoD

(581 posts)
111. There is an in-depth article
Fri Sep 11, 2015, 10:54 AM
Sep 2015
http://www.pewinternet.org/2015/09/10/what-the-public-knows-and-does-not-know-about-science/

The question was meant to determine whether people understand the difference between the science of astronomy and the pseudoscience of astrology.

hatrack

(64,887 posts)
124. Precisely! If you don't know the difference between astrology and astronomy . . .
Fri Sep 11, 2015, 11:42 AM
Sep 2015

Well, then Jupiter help you!

hfojvt

(37,573 posts)
158. except the question made astology a science
Fri Sep 11, 2015, 01:54 PM
Sep 2015

astrology is the "study" of how planets and stars determine human behavior?

A few of the questions were silly as well. A picture of a comet? That really has some practical use? Knowing about Jonas Salk? That's a history question more than a science question.

Live and Learn

(12,769 posts)
134. Because when I was in High School I signed up for a Community College class on Astronomy
Fri Sep 11, 2015, 12:12 PM
Sep 2015

thinking it would be easy and fun, just to find out it wasn't about lions, bulls and crabs. Seriously, we barely studied anything to do with astronomy except for memorizing the planets when I was in school.

Takket

(23,715 posts)
99. got all 12....
Fri Sep 11, 2015, 10:23 AM
Sep 2015

the loudness of sound one made me pause for a bit but the rest didn't give me much trouble. in fairness I'm a professional engineer. I'm kinda supposed to know this stuff.

tjwash

(8,219 posts)
102. It's official - DU has become facebook
Fri Sep 11, 2015, 10:31 AM
Sep 2015

Will I "believe what happens next?!?" after I click on the bait, navigate through the ads, and click through the 12 pages of ads and sickeningly slowball questions?

SMH

 

truebluegreen

(9,033 posts)
105. 12 for 12
Fri Sep 11, 2015, 10:34 AM
Sep 2015

To be fair: I have lived most of my life at a higher altitude than Denver and am well aware that "3-minute eggs" take longer than that becoz water boils at a lower temp up here.

Also I found that the answers I didn't "know" were accessible with reasoning...

hatrack

(64,887 posts)
108. Hope Bill-O takes the quiz: "Tide comes in, tide goes out, you can't explain that!"
Fri Sep 11, 2015, 10:42 AM
Sep 2015


12/12 - this is really, really easy stuff.

But then, I'm kind of a geek.

Ms. Toad

(38,637 posts)
115. 12/12 - I guess that's to be expected since I've been characterized
Fri Sep 11, 2015, 11:10 AM
Sep 2015

around here as an anti-science whack job.

Hassin Bin Sober

(27,461 posts)
117. This is pretty scary. Because I'm not that smart
Fri Sep 11, 2015, 11:18 AM
Sep 2015

The only one I had any difficulty with was "amplitude" and only because thought it might be a trick question - I tend to overthink things sometimes.






Science Knowledge Quiz Results

You answered 12 of 12 questions correctly.
See below how your results compare with the 3,278 randomly sampled adults that took part in our national survey and review how you responded to each question. For more findings from the survey, read "A Look at What the Public Knows and Does Not Know About Science."
You scored better than 94% of the public and the same as 6%.

<1%01%12%23%36%47%59%612%712%815%915%1012%116%12
TOTAL NUMBER OF QUESTIONS ANSWERED CORRECTLY
These percentages only reflect the 3,278 adults that took part in the national survey; online quiz results are not included in the sample.
Your responses and demographic breakdowns

Below are the percentages of each group from the nationally representative sample who answered correctly during the survey.
GENDER AGE EDUCATION RACE
Total Male Female 18-29 30-49 50-64 65+ HS or less Some College College Grad Post-grad White Black Hispanic
sciencequiz_answer1
This picture shows an object in space that has an icy core with a tail of gas and dust that extends millions of miles. What is this?

You correctly answered "A comet"

78 84 73 77 79 80 74 71 79 87 88 81 61 74
Which kind of waves are used to make and receive cellphone calls?

You correctly answered "Radio waves"

72 79 66 80 77 68 57 63 76 81 81 76 48 64
sciencequiz_answer3
This picture shows three layers of the Earth. Which layer is the hottest?

You correctly answered "The inner layer, called the Earth’s core"

86 89 84 90 87 84 84 79 89 93 93 89 75 76
Which of these is the main way that ocean tides are created?

You correctly answered "The gravitational pull of the moon"

76 83 71 76 77 74 80 65 79 90 91 83 46 70
What does a light-year measure?

You correctly answered "Distance"

72 78 66 70 76 70 70 61 76 82 84 77 49 67
Denver, Colorado, is at a higher altitude than Los Angeles, California. Which of these statements is correct?

You correctly answered "Water boils at a lower temperature in Denver than Los Angeles."

34 39 30 38 36 32 29 27 36 42 47 36 33 25
PI_15.09.10_ScienceQuizImages_magnifying glass
Which of these pictures best illustrates what happens when light passes through a magnifying glass?

You correctly answered "3"

46 55 37 49 50 46 33 40 49 49 53 49 29 44
The loudness of a sound is determined by what property of a sound wave?

You correctly answered "Amplitude or height"

35 42 30 40 38 34 28 20 38 52 62 39 23 25
sciencequiz_answer9
Which of the following statements best describes the data in the graph below?

You correctly answered "The more sugar people eat, the more likely they are to get cavities"

63 69 58 67 68 61 54 50 65 79 84 67 51 58
Which of these elements is needed to make nuclear energy and nuclear weapons?

You correctly answered "Uranium"

82 90 75 74 86 82 87 73 85 93 94 87 61 76
PI_15.09.10_ScienceQuizImages_polio vaccine
Which of these people developed the polio vaccine?

You correctly answered "Jonas Salk"

74 79 70 68 73 72 86 64 79 83 88 79 53 69
Which of these terms is defined as the study of how the positions of stars and planets can influence human behavior?

You correctly answered "Astrology"

73 73 72 68 75 75 71 64 74 83 85 76 65 64
Note: Questions about Earth’s hottest layer and magnifying glasses were adapted with permission from the Trends in International Mathematics and Science Study (TIMSS) grade 8 science assessment items in 1999. Images from Pew Research Center.
Want to take another science quiz? Take Pew Research and Smithsonian magazine’s 2013 Science and Technology Knowledge Quiz.

Xyzse

(8,217 posts)
118. 12 but those are general knowledge questions though.
Fri Sep 11, 2015, 11:18 AM
Sep 2015

I almost got the magnifying glass question wrong, since I was thinking outwards rather than inwards, but fortunately I still got it right(even though I guessed).

JustABozoOnThisBus

(24,681 posts)
120. 12/12, but had to guess on the cell phone
Fri Sep 11, 2015, 11:24 AM
Sep 2015

Radio waves? Sound waves? both are involved in a cell phone conversation. I flipped a coin and got the "correct" result.

Skittles

(171,710 posts)
191. because many of us gals were discouraged from all things math / science
Fri Sep 11, 2015, 07:27 PM
Sep 2015

it's called sexism and it still goes on

libodem

(19,288 posts)
128. I missed the boiling point question
Fri Sep 11, 2015, 11:55 AM
Sep 2015

But 11 out of 12 isn't bad.

Once I got 100% on a longer science test and some were just educated guesses. Luck had something to do with that one, I'm sure.

DCBob

(24,689 posts)
138. 12 of 12.. pretty easy.. although I did have to think a bit on a couple of them.
Fri Sep 11, 2015, 12:30 PM
Sep 2015

Disclaimer.. I am a PhD in a biology field.

 

taught_me_patience

(5,477 posts)
140. 11/12. Demographic breakdown of male vs. female is very disturbing
Fri Sep 11, 2015, 12:50 PM
Sep 2015

Females are lower on every single question and significantly lower on many of them. That gap needs to close big time.

LibertyLover

(4,788 posts)
143. I got all of them correct
Fri Sep 11, 2015, 12:55 PM
Sep 2015

which surprised the heck out of me given that I was a history major.

Brother Buzz

(39,899 posts)
155. That test was fairly pedestrian
Fri Sep 11, 2015, 01:41 PM
Sep 2015

I challenge all the DUers who tagged a perfect score to take this Christian Science Monitor quiz that has been posted on DU regularly. I guarantee it will separate the eggheads from the amateurs. I know I was humbled.

http://www.csmonitor.com/Science/2011/1209/Are-you-scientifically-literate-Take-our-quiz

Brother Buzz

(39,899 posts)
187. 38/50
Fri Sep 11, 2015, 05:03 PM
Sep 2015

But I'm an exceptionally good guesser

I like the quiz because it touches so many disciplines.

DCBob

(24,689 posts)
204. Ouch.. 34.
Sat Sep 12, 2015, 07:41 AM
Sep 2015

I did it fast and made some dumb mistakes but that was a tough test I am surprised the average is so high. Do some people cheat?

Bettie

(19,704 posts)
161. 12 of 12 correct
Fri Sep 11, 2015, 02:00 PM
Sep 2015

Those are pretty easy questions, I can't believe most people don't get them right.

longship

(40,416 posts)
162. 12 out of 12.
Fri Sep 11, 2015, 02:00 PM
Sep 2015

I can see why many missed the tide question. Not surprising that few understand F = G * (m1*m2)/ r^2

It's the 1/r^2 factor that gets ya.

Blue_In_AK

(46,436 posts)
170. I missed one.
Fri Sep 11, 2015, 02:33 PM
Sep 2015

The one about the height of sound waves. For some reason I thought that had to do with pitch. Whatever - not too bad for a psych major.

Act_of_Reparation

(9,116 posts)
173. 12/12
Fri Sep 11, 2015, 02:38 PM
Sep 2015

But I'm sure the test is flawed in some way, as the local woo-peddlers insist I am ignorant of science.

 

Liberal_in_LA

(44,397 posts)
186. magnifying glasses are used to start fires. I assumed that meant the beams had to
Fri Sep 11, 2015, 04:39 PM
Sep 2015

Come together

 

alphafemale

(18,497 posts)
196. I missed one because I got bored with the grade school science
Fri Sep 11, 2015, 08:47 PM
Sep 2015

And got lazy with reading all the way through.

MisterP

(23,730 posts)
198. 12/12--but I wonder what the results are for, like, Britain
Fri Sep 11, 2015, 11:06 PM
Sep 2015

heck, 20% of *their* students don't know the Earth goes around the Sun!

WDIM

(1,662 posts)
201. I didnt expect astrology on a science test.
Sat Sep 12, 2015, 12:11 AM
Sep 2015

I didnt read the last question fully i just read the movement of the planets and stars and marked astronomy. Never would guess astrology would be on a science test.

drm604

(16,230 posts)
202. I missed one. The one about the magnifiying glass.
Sat Sep 12, 2015, 12:14 AM
Sep 2015

As soon as I saw that I got 11 out of 12 I knew that was the one I missed. It was the only one I had any real doubts about. I was torn between two answers, one of which turned out to be correct, but I picked the wrong one.

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