This science fair project idea explores how length affects the weight a bridge can hold.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Start your toy engines -- this is going to be a fast and friction-filled race!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this project children practice the scientific method while playing with puffy paint.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this activity your child will create their very own marble maze!

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.