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What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Construct batteries that make electricity from fruits with this fun science fair project.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Test whether plants can grow without sunlight and water.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Discover whether a metal will expand under hot water.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.