This science fair project idea examines which type of insulation holds in the most heat.

Discover whether a metal will expand under hot water.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

This science fair project idea investigates how color affects temperature.

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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

This science fair project examines how seeds hitchhike on animals and clothing.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

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

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

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!

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

In this CD hovercraft science project, students will construct their own DIY hovercraft.

In this experiment, the weight of aluminum cans will be compared.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

The project is to investigate yeast fermentation and its results on hand of latex balloons.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.