Take riddling to new heights with these tricky Science Riddles (with Answers!). These clever riddles on science will test your wits and amuse you at the same time.
Science Riddles are a fun way to build interest in science while polishing problem-solving skills. Sure to boost critical thinking, these 126 logical science riddles for kids and adults combine the best of science education and fun!
- Funny Science Riddles For Kids
- Hard Science Riddles With Answers For Students
- Hard Science Riddles for Adults
- Easy Science Puzzles With Answers
- Science Riddles Printable (Free Pdf)
Funny Science Riddles for Kids
Keep your science class far from boredom with these funny science riddles with answers for kids! Excellent brain teasers for classroom and home, these science-themed riddles will evoke curiosity and interest without overwhelming kids.
We assure not only will these science riddles for kids entertain them but also help kids soak up a tonne of science facts. And don’t be surprised if you find your kids quizzing their friends with these funny riddles!
1. I am neither water nor land. Always soaking wet, what am I? Answer: Wetlands
2. I am an element and have a Marvel character named after me. Who am I? Answer: Iron!
3. I am a lizard but also a dragon. What am I? Answer: Komodo dragon!
Quick Tip: Throw in a few Amazing Fun Facts For Kids with these riddles to notch up learning!
4. What do computer geeks do on weekends? Answer: They go on a disk drive!
5. Which is the laziest mountain in the world? Answer: Mt. Ever-rest!
6. Before Mount Everest was discovered, which was the tallest mountain? Answer: Mt. Everest! It was just not yet discovered.
7. I wear many rings but have no fingers. Who am I? Answer: Saturn!
8. Why are you similar to Copper and Tellurium? Answer: Because they are CuTe!
9. What do you get when an unstoppable force meets an immovable object? A paradox!
Related: Check your smarts with Fun Science Trivia for Kids (with answers)!
10. I can flow and be still. I can be hot and be cold. I can slip through almost anything and yet I can be hard. What am I? Answer: Water!
11. Which reindeer loves going to outer space? Answer: Comet!
12. When the son of the water returns to the parent, it dies. What is it ? Answer: Ice
13. I go around and around the wood but never into the wood. What am I? Answer: The bark of a tree.
14. Why did the computer go to the doctor? Because it had a virus!
15. What four periodic elements, when combined, terrifies criminals? Answer: Carbon, Oxygen, Phosphorus and Sulphur (C+O+P+S)
16. What is at the center of gravity? Answer: The letter ‘V’!
17. Why are chemists excellent at solving problems? Answer: Because they have all the solutions.
18. What do you get when you mix sulphur, tungsten, and silver? Answer: SWAg!
19. What did the scientist say when he found 2 atoms of helium? Answer: HeHe.
20. How do you make a tissue dance? Answer: You put a little “boogie” in it.
21. You can’t see me, but I can see you. To be more specific, I see through you. What am I? Answer: An X-ray.
22. What period of time has the least weight ? Answer: A light year!
Quick Tip: Try Fun Space Trivia for Kids for more space related questions!
23. What did one uranium-238 nucleus say to the other? Answer: I got to split!
24. Why did the electron go to the gym? Answer: It was looking to gain some mass!
25. What kind of chemical element hates to be a follower? Answer: Lead!
26. How did Ben Franklin feel after discovering electricity? Answer: Shocked!
27. I am full of holes but can still hold water. What am I? Answer: A sponge!
28. Why did the atom go to the doctor? Answer: It was feeling highly unstable.
29. Why did the biologist take their microscope to a party? Answer: To make a ‘cell-fie’!
Quick Tip: Pair these silly science riddles with Funny Science Jokes & Puns!
30. What do you get when you cross a dentist and a computer? Answer: A ‘byte’!
31. What was the first animal to go into space? Answer: The cow that jumped over the Moon!
32. What is a priest’s favorite thing about physics? Answer: Mass!
33. I touch your face. I am in your words. I am the lack of space and beloved by birds. What am I? Answer: Air.
34. If you put your eye to this, it can help you to see far! It helps you to see planets, the moon and even a star! What is it? Answer: Telescope!
35. I’m as hard as stone but can be found in the body. What am I? Answer: Teeth.
36. How do we know that Saturn was married more than once? Answer: Because she has a lot of rings!
37. Why was the math book sad after a heated argument? Answer: Because it couldn’t find a common denominator!
Related: Test your math acumen with these Best Math Riddles!
38. What are the three R’s that keep our planet clean? Answer: Reduce, Reuse & Recycle!
39. What do you call a monster with a high IQ? Answer: Frank-Einstein!
Related: Check out Funny Frankenstein Jokes for a laughter riot!
Hard Science Riddles for Students – For middle and high school
These hard science riddles for students are perfect for middle school and high school kids. From simple Chemistry concepts to intriguing biology & physics, these riddles will quiz students’ understanding of the subjects.
They are an entertaining brain-break for kids and just perfect for morning class routine. Sure to warm up kids to science, these cleverly constructed science riddles with answers for high school will test their lateral thinking abilities and not just science acumen.
40. When is it correct to say 100 equals 212? Answer: When measuring temperature! 100 degree Celsius = 212 degree Fahrenheit.
41. What expands on cooling? Answer: Water!
42. Yellow in color, I can be a laboratory risk. You’ll most often find me used in an explosive. What am I? Answer: Nitric acid.
43. What has a mouth but cannot chew? Answer: A river!
44. What did the right hemisphere say to the left hemisphere when they could not agree on anything? Answer: Let’s split!
45. What is the only letter of the alphabet that does not appear anywhere on the periodic table of elements? Answer: Letter J!
46. Which element is derived from a Norse God? Answer: Thorium!
47. I am a ball that can be rolled, but never bounced or thrown! What am I ? Answer : Eyeball
48. I’m excellent to taste but horrible to smell. What am I? Answer: A tongue.
49. I am where radio waves are bounced back to the earth’s surface. Where am I? Answer: Ionosphere!
50. What do chemists call a benzene ring with iron atoms replacing the carbon atoms? Answer: A ferrous wheel!
51. Which planet has the shortest year? Answer: Mercury with 88 Earth days!
52. Which planet has the longest year? Answer: Neptune with about 165 Earth years!
53. When two light nuclei become one, I liberate quite a bit of nuclear energy. What am I? Answer: Nuclear fusion!
54. I am a hypothetical tunnel, a short cut if you will, of space-time which connects far away regions. What am I? Answer: Wormhole.
55. I can burn your mouth and sting your eye, but I am consumed every day. What am I? Answer: Salt.
56. I am hard to create and I can’t be destroyed. I can only change form. What am I? Answer: Energy.
57. Why does hamburger have lower energy than steak? Answer: Because it’s in the ground state.
58. I can keep a swimming pool clean, but I can also poison you. What am I? Answer: Chlorine!
59. I am under your face and outside your mind. What am I? Answer: Your skull
60. Why was the physics book so heavy? Because it had a mass appeal.
61. I am the oldest form of igneous rock. I make up the majority of the earth’s crust. And I am one of the hardest materials in the world. What type of rock am I? Answer: Granite
62. I can be good, but I can be bad. You’ll find me wherever you go. What am I? Answer: Bacteria.
63. What are the only two periodic elements to have the liquid state of matter? Answer: Mercury and Bromine!
Quick Tip: Pair these science related riddles with Fun Riddles for Kids to boost their thinking!
64. At night we come without being called, and by day we are lost without being stolen. Who are we? Answer: Stars
65. I am a unit of chemical elements, but I can never be trusted. What am I? Answer: An atom!
66. I am the equivalent of a one-way street in the universe. What am I? Answer: A black hole!
67. How much is the moon worth? Answer: $1, because it has 4 quarters.
68. What freezes after it is heated up? Answer: A computer.
69. I cannot be seen, and I’m measured on the Beaufort scale. I keep a kite in the air and help ships to sail. What am I? Answer: Wind.
70. Who is faster – hot or cold? Answer: Hot, because you can catch cold!
71. What is the most uninteresting of all the periodic elements? Answer: Boron!
Funny Science Riddles For Adults
Make way for Science Riddles with answers for adults! Fear not, these fun riddles are not just for the science nerds and anyone with basic science knowledge can get them.
These science riddles for adults are an entertaining way to bond with your older kids while sneaking in science education.
72. Why is an atom never late? Answer: It always has a nuclear clock!
73. Why don’t computer programmers like nature? Answer: It has too many bugs!
74. How many theoretical physicists specializing in general relativity does it take to change a light bulb? Answer: Two – One to hold the bulb and the other to rotate the universe!
75. Your mom and dad each gave you 23 of these threadlike strands and they helped to make you who you are. What are they? Answer: Chromosomes!
76. What two periodic elements, when combined, heal? Answer: Helium and Aluminium (He + Al)
77. What periodic element do pyromaniacs love the most? Answer: Arsenic!
78. You are in a room with 3 monkeys. One has a banana, one has a stick, one has nothing. Which primate in the room is the smartest? Answer: You! Humans are primate as well!
79. Why couldn’t the mobius strip enrol at the school? Answer: Because the school required orientation!
80. I am the one who remains awake when you sleep. But I need to rest when you are awake. Who am I? Answer: Subconscious mind.
81. What is the loneliest of all physics concepts? Answer : The singularity!
82. I was once an old massive star and soon I will be a brightly colored gas cloud, but for now I am a massive explosion. What am I? Answer: A Supernova!
83. How does a physicist fix a broken lightbulb? Answer: By conducting a filament analysis.
84. I make up almost 70% of the universe, but no one knows anything about me. What am I? Answer: Dark energy.
85. What’s an astronaut’s favorite key on the keyboard? Answer: The spacebar!
86. How do you get a physicist to laugh? Answer: You tell them a joke with a low threshold!
87. What can kill with only a thimbles worth; yet is around you at all times? Answer: Oxygen.
88. I am a black hole’s equivalent of a one-way street. What am I? Answer: The event horizon.
89. What did the physicist get when they told a joke? Answer: A ‘positive’ reaction.
90. I am the toe that every scientist would love to have as their own, yet there has never been a single person who has had a toe that everyone agreed is the best. What kind of toe am I? Answer: Theory of Everything! Also known as TOE.
91. What breaks but never falls? Answer: Dawn.
92. What kind of animal lives the longest in a zoo? Answer: Turtle!
93. Shiny like silver, denser than lead, pricier than gold, could stop a bullet, if I wanted to. What am I? Answer: Osmium.
94. What is the fastest way to determine the gender of a chromosome? Answer: Pull down its genes.
95. What element is a girl’s best friend? Answer: Carbon!
96. Behind where it hangs it hides. What is it? Answer: A Barometer!
97. You can’t see me, I can’t be touched, you can’t feel me – but I cook your lunch. What am I? Answer: A microwave particle!
98. H, Be, F, S, Mn, Kr, In, Gd, and Tl? What’s the next in the sequence? Answer: Fm – Fermium! All these elements have atomic numbers that are perfect squares!
99. What is black when you buy it, red when you use it and grey when you throw it away. What am I? Answer : Charcoal
100. Where does a brain go on vacation? Answer: To hippocampus
Easy Science Puzzles with Answers
Here’s the best of science and puzzles – science puzzles! Witty and crafty, these science puzzles are big on entertainment and everyone’s favourite.
Sure to get everyone involved, from primary school kids to adults, these easy science puzzles with answers promise wholesome edutainment at its best!
101. You may hear me, but cannot see me! I don’t speak unless spoken to. Who am I? Answer: Echo!
102. What number do Nickel and Neon make when combined? Answer: Nine (Ni+Ne)!
103. I am a Roman God, a planet and can measure heat. Who am I? Answer: Mercury!
104. I am a little guy who lives in the ocean. I look for a new home when I outgrow my current home. Who am I? Answer: Hermit Crab!
105. I can eat a lot of Iron without ever getting sick. What am I? Answer: Rust!
106. I am found in the Earth’s mantle, I’m silicate-rich and buoyant,
Though I’m not quite a mineral, I’m super important.
I flow in slow motion, I’m a geological dream,
What am I, beneath the Earth’s surface, it may seem?
Answer: Magma.
107. What is something with a lid, but is not a coffee mug.
It has a socket but does not have a plug.
Answer: Eye
108. I crawl on the ground with no legs to show.
My segmented bodies are a sight, wouldn’t you want to know?
In gardens and soil, I make my way.
A small creature, night and day.
What am I?
Answer: A worm.
109. I am a phenomenon occurring near the speed of light.
Inside me, time slows down. It’s quite the sight!
Predicted by Albert, I’m a cosmic thrill.
And I’m found in the depths of the universe still?
What am I?
Answer: Time dilation.
110. Always old but sometimes new.
Never sad but sometimes blue.
Never empty but sometimes full.
Never pushes but always pulls.
What am I?
Answer: The Moon
111. I produce ash but I am not a bonfire,
I can throw rocks great distances but I am not a slingshot,
I have a crater but I am not the moon,
I erupt but I am not someone with a bad temper. Who am I?
Answer: A Volcano!
112. Voiceless it cries, wingless it flutters!
Toothless it bites, mouthless mutters!
What is it?
Answer: Wind!
113. I smell like rotten eggs,
But I serve a purpose.
I’m used in the industrial realm,
But my odor makes some nervous.
What am I?
Answer: Sulphur!
114. You need to use your brain
If you want to be smart
If you want your blood pumped
You need to use your…?
Answer: Heart!
115. I’m a particle and a wave, it’s true,
In quantum realms, I might astound you.
I’m at the heart of Heisenberg’s uncertainty.
What am I in this quantum journey?
Answer: Light
116. 80 is my atomic number
And I have the symbol Hg
I am the planet closest to the sun
Who am I?
Answer: Mercury!
117. I am green and leafy, standing tall and true.
In the sun I photosynthesize, It’s what I like to do!
I produce oxygen, a breath of fresh air.
Can you tell me what I am, if you dare?
Answer: A Plant!
118. When liquid splashes me, none seeps through.
When I am moved a lot, liquid I spew.
When I am hit, color I change.
And color, I come in quite a range.
What I cover is very complex, and I am very easy to flex.
What am I?
Answer: Skin!
119. I am a fundamental particle, so small and so neat.
In the Standard Model, I take a front seat.
With six types of mine in generations complete,
What am I, in the world of particles elite?
Answer: Quark.
120. I may not be gold but I make gold look more beautiful.
I help you fly and even though I’m not popular, my prices run high. What am I?
Answer: Rhodium.
121. I am growing larger with every second, growing faster and faster.
But still over 70% of me is empty. What am I?
Answer: The Universe.
122. I’m essential to life, but I can be a menace, too.
With 23 pairs in you, I determine what you do.
Double helix is my structure; genes are my code.
What am I?
Answer: DNA.
123. Born in the ocean and white as snow.
When I fall back to water I disappear without a trace.
What am I?
Answer: Salt!
124. Of all the glands, I am known as the master because I boss around the other endocrine glands and tell them what to do. But even though I am a bit bossy, you need me for many things, like secreting hormones required promoting bone and muscle growth. What am I? Answer: Pituitary gland.
125. When Sheldon was 10, he hammered a nail into his favorite tree to mark his height. Five years later, he returned to the tree to see how much higher the nail was. How much higher would the nail be if the tree grew by five inches each year?
Answer: The nail would be at the same height since trees grow from the top.
126. Tim was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilled some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later Tim was dead. Why?
Answer: When bleach and ammonia (found in most cleaning products) are mixed, they release a deadly gas that can kill!
Download Science Riddles Printable (Free Pdf)
Science Riddles Cards
FAQ
1. I am an element and have a Marvel character named after me. Who am I? Answer: Iron!
2. Why did the computer go to the doctor? Because it had a virus!
3. What do you get when you mix sulphur, tungsten, and silver? Answer: SWAg!
4. What expands on cooling? Answer: Water!
5. I am under your face and outside your mind. What am I? Answer: Your skull
6. I am the equivalent of a one-way street in the universe. What am I? Answer: A black hole.
7. You may hear me, but cannot see me! I don’t speak unless spoken to. Who am I? Answer: Echo!
8. I can eat a lot of Iron without ever getting sick. What am I? Answer: Rust!
9. What freezes after it is heated up? Answer: A computer.
