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Science Riddles

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Science is a fascinating journey of discovery, where questions lead to answers—and sometimes to even more questions. It helps us understand the world around us, from the tiniest atom to the vastness of space. But did you know science can also be fun and puzzling? That’s where Science Riddles come in!

Get ready to sharpen your mind and test your curiosity as we dive into the exciting world of riddles!


I fall but never rise, I change the shape of land.

Gravity

I make up everything, yet you can’t see me with your eyes.

Atom

I’m not alive, but I grow; I don’t breathe, but I move.

Crystal

I give plants their green hue and help them eat sunlight too.

Chlorophyll

I’m the spark that powers your phone, but I’m invisible and roam.

Electricity

I’m a giant ball of gas that lights up your day.

The Sun

I am a gas you need to breathe, but I’m just two letters, can’t you see?

O2 (Oxygen)

I’m found in your blood, I’m magnetic too, without me you’d feel quite blue.

Iron

I’m the force that keeps you down, not a king but wear a crown.

Gravity

I speed up reactions without being used.

Catalyst

I’m the science of life, of cells and genes—I study everything that breathes.

Biology

I’m made of DNA, shaped like a twist.

Double Helix

Though I’m not a magician, I can make things disappear—what process am I?

Evaporation

I bounce off walls and let you see, but travel faster than you and me.

Light

I’m measured in Newtons and make things move.

Force

I change from solid to gas with no liquid pass—what process am I?

Sublimation

I’m invisible and all around, I make up pressure and sound.

Air

I’m tiny and mighty, control your fate, my name sounds like a dinner plate.

Cell

I’m always in motion, cause the oceans to wave, and without me, there’d be no day.

Earth’s Rotation

I’m what you get when elements mix, but not chemically, just a trick.

Mixture

You hear me crash, you see me flash, I’m caused by friction in the sky.

Lightning

I go up when it’s hot and down when it’s not.

Thermometer

I’m the basic unit of matter, my name is short and small.

Atom

I orbit the Earth but don’t make a sound, capturing views while spinning around.

Satellite

You use me to see very small things, with lenses and light or electron beams.

Microscope

That’s all for our Science Riddles! If you’re up for another challenge, click below to discover more tricky riddles!

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Filed Under: Riddles Tagged With: best riddles, easy riddles, fun riddles, funny riddles, hard riddles, kids riddles, riddles, riddles for adults, riddles for kids, riddles with answers, Science Riddles

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