This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

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.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This science fair project idea investigates the difference in reaction times between boys and girls.

Discover whether a metal will expand under hot water.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Learn all about balance and motion as your child designs a corn maze!

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 an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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

Learn whether writing things down really makes things easier to remember.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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

This science fair project idea investigates if fats add to the flavor of food.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science project idea examines the effect of microwaving on various objects.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

This science fair project idea explores substances that cause a bubble to last longer.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

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

This science fair project idea examines liquids of different densities.

This science fair project idea determines if the color of light affects the growth of plants.

Examine the effect of pressure on carbonation in soda.