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 biodiversity project examines the biodiversity in your own backyard.

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

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.

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

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

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.

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

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

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.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

People have favorite flavors, but what about ants? Which ant food is the most popular?

How well can people recall what they have observed. Test your knowledge in this fun experiment.