Probably Too Difficult For Most People

How good is your science knowledge? Find out now with this 100 question general science mega quiz. This is the second science quiz in the series. My first science mega quiz was hugely popular, so I made a second one for all you science lovers. Is this the best science quiz to test your knowledge?
You have 10 seconds for each question and then the answer is revealed.
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All videos are meant for entertainment purposes only. It's just for fun. Whilst I take care to have accurate answers, I accept no liability for any loss as the result from any errors, mistakes or omissions in these videos. The information in these videos should not be taken as fact and you should do your own due diligence and not base any decisions on the information contained in these videos. Answers are fact checked on the internet and believed to be correct at time of video posting. The images shown in the video are just for entertainment and illustration only and they do not represent the information in the questions or any brands or companies or persons mentioned in the quiz videos. The images do not necessarily reflect the information in the questions and are just for entertainment only.
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[@jimmeade2976]

Excellent science quiz, really taxed my knowledge and memory from high school and college ... which was decades ago. I'm very happy with my 88/100 score.

[@jamesshavrnoch8665]

Holy crap... I ended up at 80 correct...

[@farrcorfe]

And so you should be!

[@bothieGMX]

86/100, however, on four questions I got help from my native language (German) like on Q 20: German word for "vinegar" is "Essig" and German word for "acetic acid" is "Essigsäure" (Säure = acid). So by translating (I wasn't sure about vinegar and didn't know acetic acid at all, so I looked up both) I trivially got the answer. But on all four questions, I believe, I would have known the correct answer as a native English speaker as well.

[@oswaldoramosferrusola5235]

I am a Spanish speaking 69 years old aeronáutical engineer. I got 93 answers right. I detected a slight vías towards English speakers. The equivalence of a fathom in SI units is no science.

[@oswaldoramosferrusola5235]

​@@bothieGMXeasier for someone who understand Italiano. Acetto is vinegar in that language (which is not mine)

[@danielrutschman4618]

If these questions are too difficult for most people then most schools are doing a very poor job of educating.

[@MedusaAbuser]

Teacher here! Yeah, I have to agree (sorry fof my grammar, I‘m swiss), most schools are stuck in the 20th centuary… Or they went in the complete opposite direction and pushed digital learning onto children at a young age. The problem that I see in lot of kids is that they don‘t learn out of curiosity, rather because they „have to“. Serving them facts and not letting them expirience the struggle and satisfaction in finding the correct answer themselves leaves them unfulfilled and disinterested…

[@jladdyost]

@@MedusaAbuser Your English is fine. Picky point that lots of English speakers miss: you mean "uninterested". "Disinterested" is a good thing and means not influenced by self-interest, as in the attitude of a unbiased judge. I agree with you that there is not nearly enough teaching that inspires curiosity and discovery, but in the US this is not because kids are required to memorize too many facts. It's because they are rewarded for regurgitation of the teacher's or some "expert's" interpretation of a work of literature, rather than having them read the book and discuss what THEY think of it. This "leave it to the experts and spit it back" way of "teaching" has not trickled up to the colleges and universities--it has rolled down to the schools from them. My brother, and English professor, was hounded by superiors and colleagues for having students actually read books and then discuss them.

[@xaenon]

Remember, it takes two to learn. The teacher can teach, but the student must put some effort in, too. Also remember that on the average, schools in the United States are getting funding cut again and again. And we have a whole generation of crummy parents who treat school like day care.

[@rattywoof5259]

Perhaps it should say "Too difficult for most Americans".

[@marcinr7991]

Great quiz! But I'm not sure about question 97 (expanding gas). If the gas in question is an ideal gas, it is true that the temperature remains the same, but for other gases, e.g. those described by the Van der Waals equation, the internal energy also depends on the volume of the gas. If the gas expands in a vacuum, the internal energy remains constant (there is no work or heat transfer). For the Van der Waals gas, the only way to keep the energy constant as it expands is to lower its temperature.

[@TomD1999]

For a gas in a closed system, the product of pressure x volume x temp is supposed to be a constant. There is a principle that an expanding gas becomes cooler, that's how refrigeration and air conditioning work.

[@rogergeyer9851]

@@TomD1999: Which is why I missed the question. I'm 43 years out of college now, only took advanced science classes re computer science, and don't think we really covered that sort of thing in basic college physics. What you're exposed to in school is very random, and then it largely depends on job and interests. Sometimes for the layman, understanding the basic concept well is good enough for real world living, but overall, things change a LOT re much of science over time. Given space travel and telescopes, our solar system is MASSIVELY different than believed when I was a kid 50 to 60 years ago. Dinosaurs -- we know a LOT more and a lot of it is very different re the details.

[@kevinmcnulty7307]

Yeah V1/T1= V2/T2

[@MikeHammer1]

How can a gas expand in a vacuum? If there is gas, then by definition, there isn't a vacuum. I suppose the question meant to say a gas expanding INTO a vacuum.

[@davidthiel483]

yes, compressing a gas raises the temperature so when a gas expands????

[@kennyearthling7965]

I'm quite happy with my 90/100 There are only three classical states of matter, plasma is not a classical one.

[@LockSpaz]

I agree, that threw me. (90/100 here too.)

[@CM-dw2xr]

I agree with that. I actually answered the question out loud " 3 or, if you count plasma, 4 ". I think the word "classical" should really be the 3.

[@faylatham3849]

I agree

[@malcolmwheale4299]

I think he may have intended the ancient Greek belief that matter was comprised of fire, water, earth and air.

[@rogergeyer9851]

I'm a concept guy, not a definition guy per se, but I guessed right on that one, thinking most people wouldn't think of plasma. I scored 93. As a 65 year old that struggles over time with gradually decreasing memory crispness and speed, it's nice to have good old basic knowledge of a subject I love come through for a change.

[@paulgreen9059]

It's eerie how the red line moves faster on the questions I don't know.

[@jladdyost]

😀

[@JimmyD806]

I disagree with #36. Centrifugal force is actually a fictitious force. In all cases, the force is centripetal force. It's not the opposite. It's just the only real force.

[@naveentuteja9789]

Dear Jimmy, hope you know Newton's third law. Centrifugal force is just like normal reaction for a static body lying on a surface. Otherwise, as per Newton's first law, the body in revolution would fall into the center of the orbit. Two equal and opposite forces result in equilibrium.

[@pulsar22]

@@naveentuteja9789 Jimmy is both correct and wrong. While centrifugal force is a virtual force that seems to balance the centripetal force, it is an artifact of the inertia of the body trying to maintain its straight line motion. The centripetal force acts to prevent the object from flying out. Yet you can think of the centrifugal force as that virtual force trying to keep the body in a straight line. When you draw the force diagram, you get a orbital moment, a centrifugal force and a centripetal force.

[@MrGsteele]

Er - how does a "fictitious force" elongate a tether attached to a body spinning about an axis? But more than that - it's just a word - if you'd rather use "negative centripetal force," have at it. Words are arbitrary. Centri and Fugal - "running away from the center." Seems OK; thanks, Romans.

[@JimmyD806]

@@MrGsteele This video is whacked. There is no negative centripetal force. And people call centripetal force a centrifugal force but the true force is always a centripetal force.

[@JimmyD806]

@@MrGsteele There's negative centripetal acceleration and I think that's causing some confusion.

[@garethb1961]

Nice quiz. 91. As others have noted (maybe, probably): * Centrifugal forces are "pseudo forces" and are not real. Centripetal just means inward acting. It's an ill-posed question. * Only ideal gases have constant temp on free expansion. * Cellulose has the same energy density as starch (both being polysaccharides), if an animal has the enzymes to digest it. * Plasma was added as a state after the classical science period.

[@muskyoxes]

I don't get that distinction. If I'm accelerating, I'm experiencing a force that is just as real to me as any other force

[@garethb1961]

@@muskyoxes Hi Muskyoxes, if someone is moving in a circle, they feel they are thrown to the outside. People call this a "force" - a "centrifugal force". But in fact, there is no force. The centrifugal effect occurs because of the absence of a force keeping the person in a circular path. Another way to think of it is this. Whenever you think there is a force acting, just ask what kind of force? Gravitational, electromagnetic, tension, etc. If you can't identify what the force is, it is usually because there is no force. That's the best I can do in 100 words!

[@vicmontes7314]

@@garethb1961 Turns out Gravity is not a force any more than Centrifugal or Centripetal are if I understood Sabine Hossenfelder recent YT videos. 5 wrong of 100, I would have thought gold to be a better conductor...enzymes are proteins...with all my medical problems you would think I would know this one...Admittedly good guesses on a couple two or three. But we architects have to know a little about a lot! Not bad for a gringo, I guess!

[@torfrida6663]

88/100 which is not bad for an old artist whose last science lesson was 1962!!! Enjoyed that, but must admit to some inspired guesses. 🇬🇧👍

[@scobra5941]

Better than me- another old artist but one who never had a science lesson. I got 82...also several guesses.

[@rogergeyer9851]

When there are 3 choices, a LOT of good guessing with weeding out the obvious would help a LOT of scores significantly. It certainly did for me, and I'm now a senior citizen too.

[@jimmartin8853]

I always feel smarter after watching. Sometimes it's good enough to say I understand the question, even if I don't know the answer.😛

[@rogergeyer9851]

Given how much science denial there is, if you had a solid grasp on the concepts for almost all the questions, and how to generally APPROACH finding the answers where logic and knowledge works, that's very decent by today's standards overall (sadly enough).

[@patmcgillhastings9657]

solid, liquid, gas and plasma....height, length, width, and time. Missed 4 of the questions. I really enjoy the science quizzes. Thanks Ben, for the best quizzes on youtube. You are meticulous in your presentation and correctness of answers. Please know that all your time and hard work does not go unnoticed and is always appreciated.😊👍

[@Quizzes4U]

Awesome, thank you!

[@danielklopp7007]

Actually, the 4 phases of matter are solid, liquid, gas, and supercritical fluid (but don't feel bad, everyone except physical chemists usually gets this wrong). The phases of matter can be shown on a temperature vs. pressure graph; there is no combination of temperature and pressure (in a fixed volume) that can produce a plasma - plasma is simply an ionized gas.

[@patmcgillhastings9657]

@@danielklopp7007 thank you for this information. I am 75 and no one is too old to learn something new and learn it correctly. Anyone who appreciates education and learning as I do, always wants to learn it correctly. 👍

[@danielklopp7007]

@@patmcgillhastings9657 - I think the confusion come from substituting the word "state" with "phase" (e.g. "4 states of matter" vs. "4 phases of matter"). All middle school and high school teachers I have spoken with get this wrong (i.e. they refer to 4 states of matter as solid, liquid, gas and plasma). I then ask them to draw a phase diagram and show what combination of temperature and pressure results in a plasma... to which I get a blank stare. A plasma is an ionized gas, but retains all the same physical properties of a gas. Also adding to the confusion is the fact that at standard temperature and pressure on Earth, no substance is in the supercritical fluid phase (but we can all observe things in the solid phase, liquid phase and gaseous phase). Supercritical fluids have some of the properties of a gas and some of the properties of a liquid... strange stuff! The most common use of a supercritical fluid is decaffeinating coffee and tea (formerly done with organic solvents, now done with supercritical carbon dioxide).

[@walkerjian]

why is plasma classic?

[@French-Kiss24]

As a total non-science person, I figured I get about 10% right. I did better than I thought by just being alive and somewhat informed. I got around 70%. Yay!

[@megnotes7908]

Way to go!!! 👏🏼👍🏼😁

[@komodosp]

I'm guessing you're not a maths person either 😉 - a total non-science person should get around 33% right!

[@garethb1961]

You really are a non-science person! Science buffs will generally give a number.

[@johnharris7353]

94% ! Didn't seem to help me much throughout life. I'm 71. It was more who you know and who you blow!

[@markuswx1322]

Same as my score & no one cares-it’s considered trivia by most people.

[@robertmegee9052]

The double slit experiment for light proves that light is a wave not both. It's the photo electric effect that proves that light is a particle.

[@benthomas9830]

Yeah I would have put just a wave for that one aswell. Still I can see where he is coming from because the single slit experiment does indeed demonstrate particle like behaviour. However as the question asked sepcifically about the double slit experiment it would not be correct to say it shows electrons exhibiting particle like behaviour.

[@scibear9944]

Disagree. When photons are put through one at a time, each detection can be traced back to one slit or the other but not both, which is particle behavior. En masse the diffraction pattern results, which is wave behavior. There is still no satisfactory explanation for the dual nature of light (or other particles like electrons and even atoms moving at high speeds).

[@whosit112]

@@scibear9944 Your reasoning is circular. You are saying that the double-slit shows that particles act as particles. Anyway, the real problem is that the question refers to "the double-slit experiment" without specifying which double-slit experiment.

[@markuswx1322]

@@scibear9944 Exactly. Matter of interpretation, and still under dispute. I got the “right” answer, but knew we’d hear some discussion about it.

[@sankaranmurthy573]

Doesn't it depend on the spacing between the slits? Wide separation -> particle-like and close slits -> wave-like behaviour, as I remember.

[@laszlovida90]

90/100 here - 4 lack of scientific knowledge - 6 lack of language knowledge :D (I'm not native english, but i'm proud, that understood most of the questions)

[@Migglesworth]

Well done! 👍👍 Just for your further education: (I'm not native english, but i'm proud, that understood most of the questions) The comma after "proud" should not be there. It should look like this: (I'm not native English, but I'm proud that understood most of the questions.) 👌

[@For_What_It-s_Worth]

@@Migglesworth Close: “I’m not a native English speaker, but I’m proud that I understood most of the questions.” I had no problem understanding you perfectly. There was no ambiguity in how you worded the statement, even if it wasn’t ‘perfect’ English. [ ‘Ambiguity’ is a word meaning ‘could have more than one meaning, not clear in what was said’.] That is to say, you (and laszlo) didn’t confuse your readers. Good job.

[@johnsykes9623]

@@For_What_It-s_Worth close, however, the comma is dropped with "but" or "and", though Americans like to include it anyway, it can provide gravity lol

[@For_What_It-s_Worth]

@@johnsykes9623 This reminds me of the question of including the comma, or not, (🙂) before the ‘and’ in a three or more listing. My favorite example arguing against latter is “I would like to thank my parents, the Pope and Mother Theresa.”

[@williamverhoef4349]

Also 90 and non-native but to be fair I have been for other than the first 2 years of life :)

[@sam_c95]

I got 91/100. The ones I got wrong were 7, 23, 42, 64, 65, 88, 93, 94, 97. My excuse is that some of these were more history than science, and an imperial units conversion in a science quiz?!! How dare you!... I'm kidding of course, it's all in good fun, thanks for making these. I learnt some things, the most interesting of which were the conductivity of silver, dew, and free expansion of gases.

[@michellerichards7242]

Learnt..???

[@sam_c95]

@@michellerichards7242 Yep, learnt. British English spelling. A few other similar examples: burnt, smelt, knelt, spelt, dreamt

[@frolstty]

@@michellerichards7242 Don't be that person... Now you should feel embarrassed.

[@garethb1961]

@@michellerichards7242 Do you now concede you were in error?

[@wayneyadams]

@@frolstty If more people were "that person" we would have a much more educated society. Ignorance is never okay.

[@sameebah]

This popped up on the suggested videos, so I thought I would give it a go, sitting half-awake with a cup of strong coffee. Pleased to see that after 3 years of retirement I still managed to get into the 90's, and had I been properly awake there were a couple I would have answered correctly. A good range of topics, a couple of which had me reaching back to Biology lessons circa 1974 . . .

[@fairwinds610]

I'm a 73-year-old electronics technician, but I paid attention in General Science in high-school in 1966. I scored 94/100. Radioactive potassium in bananas? Also, the double-slit experiment demonstrated waves, not particles.

[@paulbuswell6566]

The double-slit experiment demonstrates waves and particles.

[@dadananda]

Hmm... The double slit experiment shows that light behaves as waves. If particles are used instead of light, you also get an interference pattern which proves that particles can behave as waves. But the double slit experiment does NOT show that photons behave as particles - as is implied.

[@davidb2380]

You are right, the question was misleading

[@wayneyadams]

Yes, it does, because photons (quanta) behave exactly the same as electrons. Understand that when we talk about quanta we are talking about packets of energy (waves). Let me give you a similar example thar sort of presents the idea, although it is not literally true, but gives you an idea. When sound of two frequencies are generated simultaneously the result of the interaction are beats. Beats are small volumes where the sound experiences constructive interference. The beats are packets of waves that deliver there energy in bursts as though they were particles. the number of beats per second is equal to the difference in the two frequencies. The sound is still a wave but whne it interacts with your ear it delivers its energy in bursts as though it were a particle. Light travels as a wave until it interacts with matter or some form of energy. In the case of the double slit experiment, the light cannot be detected without interacting with it in some way, which then causes it to exhibit particle properties.

[@dadananda]

@@wayneyadams You still have not said why the double slit experiment shows that light behaves like a particle...

[@wayneyadams]

@@dadananda Of course I did, it behaves exactly the same as an electron. When a detector is placed on either or both slits to determine which slit the photon goes through it passes through one slit or the other and hits the screen directly behind the slits leaving two areas of light just like a particle would. As i am about to say for the THIRD time, the photons act exactly the same as electrons.

[@dadananda]

@@wayneyadams "... just like a particle would." Why would a particle go through "one screen or the other" unless it was behaving like a wave?

[@gunnargronvall9385]

I got 97% , I am an geologist with astronomy as a hobby .

[@merlinjackson4098]

Could not resist doing this test. I am 75 years old. I scored 71 %.

[@enscroggs]

97 of 100. I learned that ostriches have larger eyes than giraffes. I also learned that Venus has the most volcanoes, though, to my knowledge, only an extremely tiny fraction of that planet's surface has been seen. On Earth, vulcanism is connected to plate tectonics, a geological process Venus is said to lack.

[@sprokethead]

Just remember if Leno took this quiz to the streets...nobody would know S!

[@dogwalker666]

If he took it to a maga meeting it would be zero.

[@rogergeyer9851]

Well, certainly true when they cherry pick the ignorant ones. Generally, I thnk it very much depends on the sort of person. Most STEM career folks in college or beyond would likely do WELL, IMO. The general layman, especially MANY in high school -- not so much - like not even in grasping the question quite often.

[@reidflemingworldstoughestm1394]

Pfft... who doesn't know that S is sulfur?

[@JakeBluez]

94/100 ... Fun and entertaining test ... many diverse subjects ...

[@wayneyadams]

Question 17. It isn't really white light, it is still red, green, and blue, but our eyes see it as white because it activates the three color cones in our eyes, red, green, and blue equally. Question 79. The two moons of mars are named Phobos meaning fear, and Deimos meaning demon, both apt names for the Roman god of war. The Greek god of war is Ares. Question 80. Aqua regia literally means royal water because of its ability to dissolve Gold. Question 82. The actual experiments carried out by Pavlov were brutal and inhumane, and today would be considered animal abuse. He didn't just ring bells and watch dogs salivate.

[@sam_c95]

This is true, but in that sense there is no such thing as white light at all because there isn't a white wavelength. We define white light as we perceive a specific mixture of wavelengths.

[@wayneyadams]

@@sam_c95 That is correct, there is no white light. In fact, the idea of color is a human invention, to the universe there are just various wavelengths of electromagnetic waves, none more special than any other. I used to do light demonstration with my Physics students. I would shine a yellow light from an LCD projector on the screen and have the students look at it through hand-held spectroscopes, and they would see just red and green with no yellow. I then projected light from a projector through a yellow filter, and they saw yellow in their spectroscopes. It illustrated the way we perceive colors which is nothing more than a combination of red, green, and blue.

[@blitzag1119]

phobos deimos arent names for the god of war, they are names for his horses

[@olliverklozov2789]

The Roman god of war is Mars. Deimos (fear/dread) and Phobos (panic/terror) are the sons of Ares and Aphrodite, not horses.

[@wayneyadams]

@@sam_c95 but?! You just repeated what I said, so why the but in the response?

[@barbarahurwitz9018]

I love this quiz. Thanks. Great job

[@Quizzes4U]

Glad you liked it!

[@rossd8361]

I scored 91/100. If that represents a very good score, I would say our public schools are doing a poor job in educating students.

[@MiniLuv-1984]

What a great idea for a youtube channel. Kudos.

[@yakinsea]

On Question 1 : A solid is the most dense and if one were to convert all the matter to energy, then the solid wins by far.

[@manoo422]

...Yes...but that wasnt the question!!

[@yakinsea]

@@manoo422 It seems to me that the question can be interpreted two different ways, and not enough information was given to get a single answer. A given volume of a substance (ie. a cubic centimeter) in each state will have the solid possessing by far the most energy. If that solid is heated to a liquid, and then on to a gas, then far more volume of the substance results, which in total holds more energy than the solid. That seems like the overly complex answer to a simple question.

[@atmads]

My siblings and I have spent our whole lives competing to see who is smartest. I think I have found a new source of quality time for us, and a new favorite channel.

[@Quizzes4U]

Excellent!

[@LJHYND]

Ugh, I only got 52/100 and most of those I made an educated guess Lol Still love your quizzes though!

[@Quizzes4U]

Thank you.

[@wayneyadams]

@LJHYND I'll bet you learned something along the way and that is more valuable than earning a high score. I taught Physics for thirty-three (33) years and my only goal was to have students leave my class with greater knowledge than they had when they entered.

[@VengerVideoGamer]

At least you're being honest. I'd bet my mortgage that there are a lot of inflated scores in the comments.

[@geo3106]

For Q1: Although the state of matter depends on thermal energy, it also depends on the intermolecular/atomic attraction force and how it decreases with range. This means a substance might have higher thermal energy than another, despite being in a “lower” state of matter. A better question would be: in which state of matter are the particles typically closest and move the least?

[@wayneyadams]

@geo3106 I agree, this is one of several questions that were badly worded. But he is not alone, i have seen some terible questions written by fellow Physics teachers, and even a few in our textbooks.

[@robertorodriguez5226]

Yup. Clarifying the question would help.

[@rossk4864]

I am 75 and still apparently remembering most of my high school science because I missed only three, one of them being that the largest eyes belong to the ostrich; I concluded the elephant!

[@grahamlong6870]

The question should have been, what animal has the largest eyes in relation to its body. The largest eyes must be something like the giant squid!

[@naomiparsons462]

75/100 I reckon that's pretty good for a pre-GCSE student if I do say so myself. This one was definitely harder than the other quiz.

[@billharm6006]

94%. Learned a couple of things that I consider to be honest misses. I'm going to check on a couple of others.

[@annikanilsson6152]

89/100 - warmest thanks for another brilliant quiz, Ben 🙂

[@pzkw6759]

89/100. I always seem to B's on your quizzes. No different from school years.

[@michaelpistey4001]

That was exactly my thought Caveat, if you don’t include math. I’m terrible

[@melstiller8561]

I absolutely, hands-down, love your quizzes, Ben! If I want to learn something new, I know that Quizzes4U are for me. Have a very happy Easter! ❤

[@Quizzes4U]

Awesome, thank you!

[@melstiller8561]

@@Quizzes4U -- You're welcome, Ben.

[@kathysampson826]

Got 4 wrong! Excellent quizz!

[@grantjones8690]

four wrong; me to. How did you get so smart?

[@Dragonblaster1]

I got all right except No. 7.

[@ktkitty1903]

Great video, lots of fun!

[@Quizzes4U]

Thanks so much!

[@jamesrose1460]

I got a 93/100. I will admit about 6 were just guesses...but still I was fairly sure I had it when I guessed. Excellent quiz

[@CM-dw2xr]

93/100 Pretty good quiz! Thanks :)

[@pvsheridan]

In Q-35 you use the term "classical." That seems to obviate plasma.

[@commodityjane]

The moon spins on its axis. Learning something new every day!

[@thesolarfutureenthusiast1102]

It does, once per orbit so we always see the same side.

[@jeffreyharrison3731]

I know the Earth spins on its axis, so I guessed that the moon does too.

[@scobra5941]

@@jeffreyharrison3731 As the moon is tidally locked to the Earth, doesn't that mean it spins around Earths axis and not its own?

[@Elriuhilu]

​@@scobra5941what you're describing is an orbit. The only way for only one side of the Moon to be visible from Earth is for the Moon to rotate around itself as it orbits the Earth, essentially turning its face towards Earth as it changes position.

[@johnwest7993]

@@scobra5941, it does both. The interesting part is that it holds 1 face to the Earth as it does so, meaning it rotates once on its axis as it goes around Earth once.

[@starman2337]

93/100. Biology always gets me, but the conductivity one was also interesting. I always thought silver was used as a compromise because it was cheaper than gold.

[@ps200306]

Also 93/100. Also flunked the gold vs. silver one.

[@dogwalker666]

Silver tarnishes reducing surface conductivity, Hence gold used for connector surfaces,

[@starman2337]

@@dogwalker666 Makes sense. Thanks.

[@dogwalker666]

@@starman2337 you are welcome.

[@cr10001]

@@dogwalker666 That's what baffled me, also the fact that locomotive windscreens have a very thin gold film. I had a vague memory that silver was better conductivity, but reasoned myself out if it :)

[@DR713TX]

Great quiz! Was fun to follow along and test myself. My only advice would be that you can sometimes weed out the correct answer by your specific vocal inflections on particular answers. It’s probably something most people will never ever notice but I figured I would mention it 👍

[@schmerlski]

Most of us taking this quiz are science nerds. Thus, we mostly scored 88 and above. I know many lawyers and successful professionals in other fields who would be lucky to get 75 or 80. I got 92 and agree with the few errors pointed out below. Anyway, we are all knowledgeable or we wouldn't be here commenting. See ya round the internet.

[@CaptHollister]

89/100 Great quiz

[@petertattum2338]

About 90/100, Ben. There were a few 'senior moments' involved!

[@wansihettiarachchi5148]

Interesting.

[@robadams5799]

The difficulty for me in the quiz was the thought of trying to keep track of my score across 100 questions.

[@rogergeyer9851]

I just kept a running count of the seven I missed. That wasn't too bad. But yes, remembering to accurately count 100 times while answering questions would be a pain for folks over, say, 50.

[@heilan45]

probably in the 80s I got right...But, I feel dumb...I feel I learned somethings I did know. so, we all good.

[@ruthlessgoat3702]

Missing Galapagos = Home Skooling. Not me, 93.

[@johnwausau64]

The coiled pipe shown in the PVC question, was actually HDPE or high density polyethylene...... for water service application. PVC is usually sold in straight lengths.

[@guitardzan5641]

I am a 72 YO high school dropout....But I did learn how to read! ...... 79%

[@cougar02000]

I only got 90/100, I was waiting for the hard questions but didn't really get any, but then again I'm something of a science geek, being interested in it all my life, and as such can't resist these quizzes.

[@kc5402]

Evidently ten of the questions *were* hard, at least for you.

[@Andrewy27]

Fun fact for #23; Becquerel, just like Hertz, describes the frequency of what it measures. Hz measures the frequency of events or cycles that happen per second, whereas Bq measures the average frequency of the answer per second.

[@blackletter2591]

I thought he was the French verbs feller.

[@megnotes7908]

I figured I wouldn’t do well, so I didn’t keep count. I’m blown away by how many I got right! And so many of my correct choices were from trusting my gut; forgotten knowledge stored in the convolutions of my brain, perhaps? Three correct answers were sheer dumb luck on stuff I’d never heard of before. Very fun quiz - I learned a lot! Thank you.

[@Quizzes4U]

Awesome

[@brian1204]

Nice quiz. Covered a wide variety of sciences. I did find a couple of questions a bit ambiguous. Light does diffract, but I don’t think of that as “bending” around a corner. And I misunderstood the term “classical” states of matter, but thought it meant solid, liquid, gas, since colloidal was defined much later. By the “correct” answer of 4 I am assuming you meant air, water, earth, and fire? Anyway, enjoyed it and ended up with 89 correct.

[@rattywoof5259]

The fourth state is plasma.

[@pulsar22]

I scored 93/100. I missed the following: lowest electrical resistance, primary storage of carbohydrate, who first proposed the BBT, has the highest number of volcanos, animal with the largest eyes, plant that lives more than 2 years, what type is CT scan

[@slowercuber7767]

I missed more than a couple but less than many. Good quiz. Got me on the drone.... I wonder if you are right about the gas expanding in a vacuum, I was pretty sure the temperature would decrease....but I do see how the molecules won't loose velocity ... you got me flummoxed.

[@larsgottlieb]

I didn't know the proper English name for vinegar, and didn't know that ostriches have the largest eyes of a land animal. I feel I did ok.

[@smudge0356]

Damn! I should have a score of 97, however, 2 indecisive guesses Q. 23 & 92 and 4 answers blown by memory fails Q. 2, 7, 65 & 71 only gives me a 91. Buuutt... I'm still pretty happy with that! 👍🏼😁 A. 2, 7, 71, 92 B. 23, 92

[@fullu3]

17 wrong... and I really kicked myself on a couple of them! Good quiz!

[@fidelogos7098]

89/100. I think most of us who would even be interested in taking the test to begin with are probably science nerds anyway. BTW, I'm currently reading the book the movie Oppenheimer is based on. Excellent insight into quite a few of the giants of the time. Imagine what it would be like to have a beer with Bohr or Einstein or Schroedinger.

[@bicivelo]

what does it mean if I go a negative score??? :-D Fun stuff but I wish you included quick explanations for some of the answers.

[@amicandaroom]

Lost count, but ~94% correct or so. Good quizzes, but I wish it didn't have such a delay between questions. After getting one wrong in the first forty, I seriously considered not bothering with the rest.

[@calicoasting]

I'm a lot smarter than I thought I was 😂

[@mayorb3366]

Great quiz!!! I didn't keep score, but probably made about 65%. I paused the video a few times to further investigate the answers. The last time I sat in a science class was ~40 years ago. Just subbed!

[@Quizzes4U]

Thanks 😁

[@robertvirnig638]

I scored 92/100. I admit I am confused about the expansion of gas in a vacuum. Wouldn't the temperature decrease? The gas doesn't gain or lose energy, so as it expands it seems it would contain less energy in any given location, thus lower temperature. Less molecules containing energy equals less energy or temperature. Maybe someone can explain where I am getting this wrong.

[@manishkanojia679]

Hi.. can you please post quizes without the options? With options it becomes too simple to answer.

[@DaveKeenan1956]

I had virtually no science education at school, so I stopped after 10 questions and will come back when I'm less tired. Got the first question wrong, and want to think about that. Was correct on the next nine, but I'm old :-) Quizzes are fun!

[@breadfan7433]

Like last time, I was aiming for 90. Last time I had gotten 89. On the last question, I knew well that bananas are rich in potassium, but I thought, "well, potassium is not radioactive", so I picked radium even though it seemed weird. Completely forgot about isotopes... I knew I had about 10 wrong answers so far, and I thought "oh, no, please don't let it be 89 again". I anxiously counted the X's on my list, turns out I had 9 wrong answers so far, so I got exactly 90. I know this is silly. After all, we find multiples of 10 significant only because we have 10 fingers. And yet, I'm so happy right now. Thank you again, that was so much fun.

[@Quizzes4U]

Awesome. Glad to hear you did very well.

[@Unknownentityfeline]

I'm happy for you, too! Now, aim higher!! Don't be afraid, you'll get it!!

[@kennithprice6807]

85/100 brilliant quiz thanks again Ben I learnt a lot from that , happy Easter all the best Ken 👍👍😁

[@Quizzes4U]

Same to you. Thanks

[@susangratwick5327]

Thank you. I didn't and don't keep my score as it's usually not to be shared + science is not my best subject, but this time today I was able to get a lot right! So well done to you! Thank you. 😊

[@Quizzes4U]

Great job!

[@nicholasharvey1232]

I got 85/100. Some of these were actually a bit tricky.

[@therealchayd]

92/100; Some of the biology and geology ones got me!

[@jemma50]

Excellent quiz, Ben. I got 76/100, which is a miracle of a little knowledge and a lot of good guesses. 😊 ♥

[@ThUnDaHuNtA_Australia]

question 35 :- if you are going to include plasma in the 'classical' context then there are 5 states of matter... sloid, liquid, gas, plasma AND bose - einstein condensate... having said that i got 92 or 91 without it.

[@wayneyadams]

@ThUnDaHuNtA_Australia Actually there even more than that, but none of them are present in our everyday world.

[@nurselibby96]

Great science quiz, Ben. I'm best at anatomy and physiology. I did my best at the rest. Thanks for the challenge.

[@Quizzes4U]

Excellent!

[@sharonholloway8237]

These are great for keeping the brain sharp. I'm glad to know my science knowledge is still up to scratch. 97/100.

[@lucdery6836]

93/100 Considering there were some english words I did not know (fathom?), it’s not too shabby 😊. Could you made one without options? Just ask what is the unit of mesure for power, for instance…

[@reidflemingworldstoughestm1394]

It took me a bit to work out why an expanding gas doesn't lose temperature in a vacuum until I look at it as a vacuum contains nothing for the gas to transfer its heat to.

[@gcewing]

The question should have specified "ideal gas". Real gases have small attractive forces between the molecules, so when they expand, some of the kinetic energy of the molecules becomes potential energy and the temperature goes down. This is why the gas that comes out of a CO2 fire extinguisher when you pull the trigger is cold. If CO2 were an ideal gas, it would stay very nearly at room temperature.

[@reidflemingworldstoughestm1394]

@@gcewing The answer is the same either way.

[@williamBryan-k2e]

on the question of ( dew/water ). the p;rocess can be considered both condensation and p;recipritation. why precipitation - that is when you get a substance to change state and fall out of the other. such as getting copper sulfate ( example ) to drop out of water when you add something else. Well getting water as a gas to drop out of air, it precipitates out. and that is why we call rain precipiation. Outside of that - I have no problems with rest of test.

[@peterwilson7532]

92% for me, the gas expanding in a vacuum got me. As did the eye size question, which was a flawed question. I'm surprised Venus has more volcanoes than Earth. Mesozoic, drone bees, got me. I ran out of time for two questions and I correctly guessed one.

[@seancraven2361]

Great quiz, loved it, got three questions wrong and that made me google the shit to check and then learnt some new stuff. Great video, there should be more like it out there. I'm still pissed that got me. Didn't know CT scans where X-rays, knew Venus is hot bot not about volcanic activity and the radial nerve thing. Got the eye question only by assuming you ment relative to head.

[@CM-dw2xr]

Actually, the ostrich has the largest eyes of any land animal period. It's NOT the largest eye relative to body size, either ... the Tarsier takes that record. Take a guess the largest eyes of any animal on Earth ... it's about 5 times the size of the ostrich eye.

[@genghois]

Only 82. That was a hard one. Though I completely disagree with the answers to a few of them. Hehe!

[@hulkthedane7542]

11 wrong, one being the length of a fathom - a unit of measurement I never heard of, not used in Denmark, where I come from. ..and expanding gas cools down, even in vacuum .. Very interesting video

[@kristine6996]

A fathom is a measurement used in the naval world.

[@hulkthedane7542]

@@kristine6996 then I do know its Danish counterpart. Just did not know the English word for it. Thanks.

[@tonychinnery]

The temperature of a gas is proportional to the average kinetic energy of the molecules (Boltzmann). So does not change as the gas expands. It will change (e.g. in a refrigerator) if liquid coolant is sprayed through a nozzle and becomes a gas, as the latent heat of vapourisation has to be taken out of the gas.

[@milleijones2828]

72/100 Better than I thought I'd do! Science is not my best subject. Good quiz.

[@Quizzes4U]

Excellent. The next quiz will be something different. 😁

[@philliberatore4265]

Interesting questions, I had to really think about some of the answers. The pacing is perfect and narration is spot on. Nice to hear a real voice instead of the crappy AI mispronunciations. BTW, 96 / 100

[@Quizzes4U]

Thank you very much! 😊

[@arlo0011]

83/100. I thought I'd do better. Great quiz - again, lots of variety.

[@Quizzes4U]

Excellent

[@susanleitch8649]

Hi Ben. Happy Easter! Bit of a disgrace, but did my best...got 78/100. Not bad for an old lady! Enjoyed the quiz as always. Quite surprised I did as well as that to be honest. Dreaded it a bit, but had to do it!😮😂❤. Thanks, as always.

[@Quizzes4U]

Thanks for giving it a go. I think you did great. The next quiz I'm working on now will probably be more to your liking. Have a great Easter. 👍😁

[@susanleitch8649]

@@Quizzes4U Sounds interesting! 😊

[@Quizzes4U]

I would say what it is, but given that other channels copy anything I make that's successful, I will leave it as a mystery until it comes out. 👍😁

[@susanleitch8649]

@@Quizzes4U Keep your secrets! 🤭❤️

[@passingby2522]

17:05 This is not dew, but guttation - recognizable by the droplets being only on the tip of the grass blade. It's the water that plant itself puts out when the soil moisture is too high

[@MichaelBeach-bt2xw]

94/100. I am currently running home to show me mommy how I did

[@MichalOttotoday]

These are solid, liquid, and gas. Additional states of matter include plasma, Bose-Einstein condensate, quark-gluon plasma, and degenerate matter.

[@peapod8]

Many I guessed right with a lot of them using a process of elimination and word roots & association.

[@angelitagunda4708]

Quite happy with my 98/100 for a Grade 6, although i consider it low(not to brag)

[@Unknownentityfeline]

98/100 and one I guessed at. Not a great achievement because I love science and I probably read more in this category than Joe Average. I did find many of these questions too basic to be included under the title of this video. The reason I did this quiz was that I was expecting some really difficult questions, which never happened and the reason for my two mistakes were that I just didn't know the correct answer, not that the questions themselves involved the need for complex thought or calculation. Still, it was fun, so thank you!!

[@SergioMollari]

92, but only because I misread 3 questions. The other 5 were because I was dead wrong. Still, I'm happy with it.

[@letteracura]

Thanks, love the idea of the channel, best wishes