This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Discover whether a metal will expand under hot water.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This project explores ways to prevent static electrical shocks.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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

This project examines what types of objects burn and which burn faster and cleaner.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

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

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

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