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Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

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

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

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

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

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

In this design challenge, your child will make a bottle rocket using typical household items.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.