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.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

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!

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

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.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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?

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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.

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

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.

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.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.