General Discussion
Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region Forums12 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. Thats 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 didnt 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
peacebird
(14,195 posts)Liberal_in_LA
(44,397 posts)peacebird
(14,195 posts)TDale313
(7,822 posts)TubbersUK
(1,517 posts)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)'Boyle's law'. You compare the relative pressure differential, and you know where gas expands most easily
TubbersUK
(1,517 posts)LibertyLover
(4,788 posts)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)That question should not have been included on this quiz.
is Statistics.
Agschmid
(28,749 posts)NuclearDem
(16,184 posts)Mike Daniels
(5,842 posts)Kind of guessed on the magnifying lens based on what seemed to make sense. The others were pretty obvious from my POV.
Lancero
(3,276 posts)Ilsa
(64,368 posts)KentuckyWoman
(7,401 posts)tblue37
(68,436 posts)Scootaloo
(25,699 posts)I figured it was velocity, since sound is kinetic - oh well.
restorefreedom
(12,655 posts)the sound one. and i was going to put amplitude...grrr always go with your first answer
KamaAina
(78,249 posts)I imagine representatives from Yale will be waiting at my door this evening to confiscate my diploma.
A HERETIC I AM
(24,876 posts)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?
Mojorabbit
(16,020 posts)Skittles
(171,710 posts)tblue37
(68,436 posts)people would struggle with. ((My error was the sound one.)
Whiskeytide
(4,656 posts)Solly Mack
(96,943 posts)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%.
Liberal_in_LA
(44,397 posts)steve2470
(37,481 posts)bullwinkle428
(20,662 posts)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!
rock
(13,218 posts)I got 12 as well! (And it has nothing to do with our names!)
renate
(13,776 posts)That's cute!
X_Digger
(18,585 posts)TubbersUK
(1,517 posts)better than expected
Fumesucker
(45,851 posts)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)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)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)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)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)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).
Fumesucker
(45,851 posts)And diesel cars are extremely common in Europe.
Response to Fumesucker (Reply #24)
Post removed
Kelvin Mace
(17,469 posts)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)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)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)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)'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.
DCBob
(24,689 posts)jonno99
(2,620 posts)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!
Recursion
(56,582 posts)sir pball
(5,340 posts)..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)but none of the other answers was correct except uranium.
Yeah, I'm a nerd. I wear the label proudly.
steve2470
(37,481 posts)Skittles
(171,710 posts)I knew it took longer to boil water at higher altitudes but.....
Fumesucker
(45,851 posts)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)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
Scuba
(53,475 posts)steve2470
(37,481 posts)I was feeling a bit lonely being the only one to miss that one!
Have a good day.
hifiguy
(33,688 posts)dixiegrrrrl
(60,160 posts)ants.
and setting paper on fire in the backyard with a magnifying glass.
mahatmakanejeeves
(69,850 posts)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)and using magnifying glass to start a fire. Boiling water threw me.
smirkymonkey
(63,221 posts)I answered #2 instead of the correct answer which was #3.
Xithras
(16,191 posts)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)
The one I missed was about boiling water in Denver and LA...i said both, but it was Denver!
youceyec
(394 posts)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)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.
Spider Jerusalem
(21,786 posts)uponit7771
(93,532 posts)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...
quaker bill
(8,264 posts)But then I am a scientist.
NutmegYankee
(16,478 posts)I kind of expected that.
murielm99
(32,988 posts)LiberalArkie
(19,804 posts)Trailrider1951
(3,581 posts)But then, I'm an amateur astronomer and a retired geologist.
muriel_volestrangler
(106,211 posts)"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)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)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)It just wouldn't "move" with respect to the coast.
muriel_volestrangler
(106,211 posts)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)as long as the moon still orbits Earth.
muriel_volestrangler
(106,211 posts)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)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)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)not the main "way" they are regular and predictable as they are.
muriel_volestrangler
(106,211 posts)so when both are presented as alternatives, it's a crappy question.
Jim Lane
(11,175 posts)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)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)just their creation. That makes it a bad question.
Jim Lane
(11,175 posts)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.
NuclearDem
(16,184 posts)Tide goes out, tide goes out. You can't explain that.
MindPilot
(12,693 posts)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)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)IOW, the only answer anywhere near the correct one could be excluded because labels indicating yearly changes were not shown on the graph.
hobbit709
(41,694 posts)madokie
(51,076 posts)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)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.
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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.
dixiegrrrrl
(60,160 posts)11/12.
The sound one threw me, I over thought it.
Liberal_in_LA
(44,397 posts)AngryAmish
(25,704 posts)underpants
(196,495 posts)polly7
(20,582 posts)TransitJohn
(6,937 posts)n/t
orwell
(8,003 posts)Thanks for posting.
LiberalElite
(14,691 posts)I was never much for science classes but I must've been paying attention (mostly).
oberliner
(58,724 posts)If not, why do white people have a higher percentage of correct answers than non-white people on every single question?
Recursion
(56,582 posts)pnwmom
(110,261 posts)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)I just saw that they included a chart with the results by demographic and that seemed striking.
lumberjack_jeff
(33,224 posts)My takeaway is that we really do need to expand the reach of STEM education beyond only white boys.
MindPilot
(12,693 posts)A one-point gap between genders on the Astrology question to a 14-point gap on the Uranium question.
oberliner
(58,724 posts)They are many initiatives in that regard.
Recursion
(56,582 posts)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)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)Both radio waves and light waves are types of electromagnetic waves, but they are in different parts of the electromagnetic spectrum.
bigwillq
(72,790 posts)PJMcK
(25,048 posts)...but I made the 6%!
Erich Bloodaxe BSN
(14,733 posts)Error 503 Service Unavailable
We're very sorry, but the page could not be loaded properly.
ProfessorGAC
(76,703 posts)I got all 12 but had to take the quiz twice to get my score.
ileus
(15,396 posts)Oh I'm mad....all those were so easy.
GreatGazoo
(4,608 posts)concept. And they left out Asian as an option there but it doesn't matter because, again,...
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)in the question about 'stars influencing behaviour'. Maybe knowing what's pseudoscience is also part of knowing science to them?
GreatGazoo
(4,608 posts)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)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)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)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)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)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)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!
nadine_mn
(3,702 posts)trying to remember how it changed at altitude and just blanked.
phylny
(8,818 posts)Missed the one about boiling water and the magnifying glass.
I'm surprised I didn't fail. I sucked at science.
Rex
(65,616 posts)Called it. 12/12. I guessed on the boiling water question.
Mendocino
(8,492 posts)A little tougher than Celebrity Jeopardy. "Sean, name a number, any number".
nykym
(3,063 posts)1 question, Water boils...
Maybe someone can see how we as a whole on DU scored.
Mr Dixon
(1,185 posts)8 OUT 12 RIGHT
KittyWampus
(55,894 posts)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)"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)Seriously out of place on a science quiz.
TacoD
(581 posts)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)Well, then Jupiter help you!
hfojvt
(37,573 posts)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)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.
steve2470
(37,481 posts)PowerToThePeople
(9,610 posts)Pretty lame quiz. I was not sure on polio vaccine one.
Takket
(23,715 posts)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)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
urbanhermit
(865 posts)But I have a biology degree.
truebluegreen
(9,033 posts)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...
MosheFeingold
(3,051 posts)hatrack
(64,887 posts)12/12 - this is really, really easy stuff.
But then, I'm kind of a geek.
Waldorf
(654 posts)Missed the boiling water and sugar/tooth decay graph.
lumberjack_jeff
(33,224 posts)
libodem
(19,288 posts)Baclava
(12,047 posts)good thing there wasn't any math
Ms. Toad
(38,637 posts)around here as an anti-science whack job.
tabasco
(22,974 posts)72% answer half or more of the questions correctly.
Hassin Bin Sober
(27,461 posts)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 Earths 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."
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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"
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The loudness of a sound is determined by what property of a sound wave?
You correctly answered "Amplitude or height"
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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"
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Which of these elements is needed to make nuclear energy and nuclear weapons?
You correctly answered "Uranium"
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PI_15.09.10_ScienceQuizImages_polio vaccine
Which of these people developed the polio vaccine?
You correctly answered "Jonas Salk"
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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"
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Note: Questions about Earths 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 magazines 2013 Science and Technology Knowledge Quiz.
Xyzse
(8,217 posts)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)Radio waves? Sound waves? both are involved in a cell phone conversation. I flipped a coin and got the "correct" result.
olddots
(10,237 posts)yardwork
(69,364 posts)B Calm
(28,762 posts)than women?
Skittles
(171,710 posts)it's called sexism and it still goes on
libodem
(19,288 posts)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.
Aerows
(39,961 posts)I must have paid attention in my science classes
RKP5637
(67,112 posts)Agnosticsherbet
(11,619 posts)I did not find that difficult.
ColesCountyDem
(6,944 posts)DCBob
(24,689 posts)Disclaimer.. I am a PhD in a biology field.
Dream Girl
(5,111 posts)Wasn't sure about the boiling water...
taught_me_patience
(5,477 posts)Females are lower on every single question and significantly lower on many of them. That gap needs to close big time.
dumbcat
(2,160 posts)is the obvious explanation.
LibertyLover
(4,788 posts)which surprised the heck out of me given that I was a history major.
oswaldactedalone
(3,603 posts)Zorra
(27,670 posts)dembotoz
(16,922 posts)Skinner
(63,645 posts)The one about sound.
olddots
(10,237 posts)Brother Buzz
(39,899 posts)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
hifiguy
(33,688 posts)Humbling indeed. The math-y ones were my downfall.
Brother Buzz
(39,899 posts)But I'm an exceptionally good guesser
I like the quiz because it touches so many disciplines.
Trailrider1951
(3,581 posts)42/50, Damn those Physics questions!
DCBob
(24,689 posts)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?
jonno99
(2,620 posts)(I'll have to tell my boss that I got something right today...)
Wounded Bear
(64,324 posts)12 for 12
Bettie
(19,704 posts)Those are pretty easy questions, I can't believe most people don't get them right.
longship
(40,416 posts)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.
Boomer
(4,405 posts)Not too bad for a Sociology major who graduated 40 years ago.
DawgHouse
(4,019 posts)Blue_In_AK
(46,436 posts)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)But I'm sure the test is flawed in some way, as the local woo-peddlers insist I am ignorant of science.
JI7
(93,616 posts)samsingh
(18,426 posts)Liberal_in_LA
(44,397 posts)Come together
samsingh
(18,426 posts)hifiguy
(33,688 posts)too quickly and got it wrong.
Gothmog
(179,866 posts)CTyankee
(68,201 posts)mike_c
(37,051 posts)Meh. Izzat all you got?
alphafemale
(18,497 posts)And got lazy with reading all the way through.
Spirochete
(5,264 posts)I did better than I thought I would.
MisterP
(23,730 posts)heck, 20% of *their* students don't know the Earth goes around the Sun!
WDIM
(1,662 posts)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)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.