The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

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

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

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

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

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

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.