Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

The goal of this project is to create an exciting topographical map out of dough.

Use pepper and soap to discover some fun facts about the properties of water.

Learn all about balance and motion as your child designs a corn maze!

This science fair project idea experiments with spinning color wheels and optical illusions.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

In this activity, your child will be challenged to make a tower using paper cups.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

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

In this science fair project, students make their own rain gauge to measure rainfall.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

In this design challenge, your child will make a bottle rocket using typical household items.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

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

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Have your child kick off their summer vacation by making a miniature water slide!

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.