3rd - 7th Grade Science Resources : Page 36

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.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

This science fair project idea explores how length affects the weight a bridge can hold.

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

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

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

This project examines what types of objects burn and which burn faster and cleaner.

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.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Is your child a young ornithologist in the making?

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

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

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.