General Science Quiz - How Many Can You Answer?

How good is your science knowledge? Find out now with this 100 question general science mega quiz. The best science quiz to test your knowledge.

You have 10 seconds for each question and then the answer is revealed. Good luck

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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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[rajiv]

MITOCHONDRIA IS THE POWERHOUSE OF THE CELL! ✊🏻

[PeerAdder]

Q47: no, convection is not the "explanation" for why hot air rises and cold air sinks, it is the description of that phenomenon. The "explanation" is buoyancy, arising from changes in density due to changes in temperature.

[paulthompson]

97/100. Medical knowledge again played a big part. It helps to identify thhe root of some of these word and to work out the correct answer logicly.

[peterbenoit]

100/100 Math/physics double major and biochemistrey minor, graduate school for mathematics. I read a few hours a day, all nonfiction. Almost 70 years of age. It can be done.

[barbaraannroach]

I’m over 70, no chemistry classes, very little biology, and managed a 60 out of 100. Not badfor an old woman.

[RyuhVAL]

number 10: 1. Dopamine is a neurotransmitter, not a hormone. 2. Dopamine doesn't control happiness, that's more seretonin. The reason it is thought of as a happy neurotransmitter is because of the reward pathway system, which is based on dopamine, and when activated, can make you feel happy. But dopamine release does not necessarily make you happy. It's a complex system not quite fully known.

[_Diana_S]

№47 is not correct either. The reason for hot air rising is that it is not as dense as cold air. Cold air is denser (i.e. heavier per volume unit) and dense liquids, gases tend to drift lower, pushing other liquids/gases, up. So the reason is "different density". "Convection" is a consequence of this process.

[kizpaws]

How I love science quizzes!
Thanks so much!

[BonifacioCuizon-mlgz]

I'm 55/100 but I'm half of it. I'm still proud 😅

[andrewworth]

92/100. I disagree that it's composition that distinguishes asteroids from comets, virtually all of the asteroids in the outer solar system - the Trojans, Kuiper belt objects, are largely composed of ices, and would be comets if in highly elliptical orbits that entered the inner solar system.

[jemma]

83/100. Pretty good for a gal who sucks at science. My score would have been much, much lower without the multiple choice, I can tell you! LOL Thanks much for the brain workout, Ben. ♥

[hipsterkennyrogers]

90/100. Of the ten I missed, I just had no idea on 8 of them. There were also several that I was low confidence on but guessed right.

[JovitaRiyaDSouza]

87/100 I'm studying in 10th this was useful for me thank you so much

[kevinpayne]

97/100. Having a 40 year career in chemistry helped. 🤪😂- also astronomy was a hobby of mine.

[davidwood]

I miss 5, at 75 I still got it . I do a lot of these test to keep sharp . I also read a lot .

[fredneecher]

Question 41: refraction only describes the bending of light it doesn't explain it. The same thing goes for question 47, where convection describes the movement of warmer air. I got 78 first time round, but second time I did a lot better!

[nathangoodman]

Number 47 annoyed me convection isn't why hot air rises it's a result of hot air rising. It rises due to being less dense than the surroundings so experiences an upthrust greater than it's weight

[susangratwick]

Thanks I enjoyed that. Your voice is much less of an irritant than many who host these quizzes!

[romanpolak]

Questions no. 47 is worded wrong. Convection IS the movement of fluids due to different properties, like density. It doesn't explain why it happens.
Archimedes explains that warm air, being less dense as it expanded, rises above colder, denser air because it displaces more volume per unit of mass.

[lornafraserwaterworth]

Thank you Ben for your superb quiz. 👍👍
92/100