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

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

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

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

This project investigates the affect of storage temperature on microwave popcorn.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Discover which fabrics shrink the most in the wash and why.

This science fair project idea explores whether color affects a person's emotional state.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.