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A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Examine the effect of pressure on carbonation in soda.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Help your kindergarten science maven explore the water cycle without getting everything wet.

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.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

An home science experiment for older students that teaches about the science behind heat.

This science fair project idea examines which type of insulation holds in the most heat.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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

This science fair project idea explores whether talking to a plant will help it grow.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

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.

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

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

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

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