In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

What happens when colored beams of light mix? You might be surprised.

Check out this cool science fair project on identifying rocks and minerals for kids.

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

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

Take a dive into the candy jar with this yummy science experiment.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This science fair project idea explores which fruit molds the fastest.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

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

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

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

This science project teaches students to classify different shapes of leaves.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This science fair project idea explores whether white light can be separated into different colors.

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.

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

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.