This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

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

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This science fair project teaches students about wilting and browning of salad greens.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

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

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.