Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

This science fair project idea examines the reason boats are shaped and engineered.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

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

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

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

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

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

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

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.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.