This science fair project teaches students the differences between fruits and vegetables.

Demonstrate how to tell the age of an egg without having to crack it open.

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.