Science Riddles for Kids (Fun and Educational!)

I go around the sun but I’m not a planet. I light up the night but I’m not a star. What am I?

I’m full of hot gas, shine bright in the sky, and can burn you if you get too close. What am I?

I can be a solid, a liquid, or a gas—but I’m always H2O. What am I?

What part of the body has a name that sounds like something you hear with?

What never moves but can make things move around it?

I’m the force that stops you from sliding on ice. What am I?

I'm the smallest unit of matter, and everything is made of me. What am I?

I flash in the sky and follow with a boom. What am I?

I can be measured with a thermometer, but I’m not a number. What am I?

I mix red and blue to make purple. What science am I part of?

I orbit the Earth, help with weather and GPS, and float in space. What am I?

I change food into energy in your body. What process am I?

I help plants make food from sunlight. What process am I?

I’m made of bones and help you stand tall. What am I?