Are you ready for a little science fun? Here are science riddles with answers that will get your students thinking (and smiling).
These clever science riddles are perfect for Chemistry and Biology classes. There are a few in this riddle collection that will work for younger kids too.
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Science Riddles with Answers for kids
- You will find me in Mercury, Earth, Mars, and Jupiter, but not in Venus or Neptune. What am I? – The letter R.
- What is the moon’s worth? – $1, because it has 4 quarters.
- What can be measured, but has no length, width, or height? – The temperature.
- You can’t see me, but I can see you. To be more specific, I see through. What am I? – An X-ray.
- At night they come without being fetched. By day they are lost without being stolen. What are they? – The stars.
- What has a mouth but can’t chew? – A river.
- Lots of people have heard it, but no one has seen it. It will not speak back unless spoken to. What is it? – An echo.
- It is very hard to create me, but I can’t be destroyed, I can only change form. What am I? – Energy.
- I am the child of the water, yet when I return to the water, I die. What am I? – Ice.
- I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I? – Subconscious Mind.
- I’m in your kitchen pantry, waiting for you to wrap me over something. What am I? – Aluminium.
- What is black when you purchase it, red while you are using it, and gray when you discard it? – Charcoal.
- What four periodic elements, when combined, make up something that terrifies criminals? – Carbon, Oxygen, Phosphorous, and Sulfur (C + O + P + S).
- If bananas were to have a chemical formula, what would it be? – BaNa2.
- I am a gas that is essential for plants, but I can’t be bought at the gas station. What am I? – Carbon dioxide.
- I am a god, I am a planet, and I can measure the temperature. What am I? – Mercury.
- I can be sparkling, I can be still, I am a liquid and something you can spill. What am I? – Water.
- If you get me as a medal it means that you have done your best. I am what you find in abundance in a hidden treasure chest. What am I? – Gold.
- Occasionally associated with smelly things, what state of matter am I? – Gas.
- I am a unit of chemical elements, but I can never be trusted. What am I? – An atom, they make up everything.
- Anyone can hold me, even without their hands, yet no one can do it for long. What am I? – Breath.
- I am under your face and outside your mind. What am I? – Skull.
- I am a ball that can be rolled, but never bounced or thrown. What am I? – The eyeball.
- I am hard as a stone but you can find me on your body. What am I? – Teeth.
- Without me as a part of your brain, you would lose your posture and balance, and be unable to coordinate muscle movements. I always hang out near my good friend the brainstem. What am I? – Cerebellum.
- I am three-quarters of the universe and almost nothing is known about me. What am I? – Dark matter.
- I can be good for you, I can be bad. You can find me all over your body. What am I? – Bacteria.
Add your favorite science riddle to the comments.
For more giggly fun, check out these books:
- Best Joke Books for 7-year-olds
- Knock-Knock Jokes for Kids (check it out on Amazon here) – Affiliate link
- Laugh-out-Loud Jokes for Kids (check it out on Amazon here) – Affiliate link
- National Geographic Kids Just Joking (check it out on Amazon here) – Affiliate link