This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Learn all about balance and motion as your child designs a corn maze!

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool 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.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

In this fun experiment, we'll find out how color affects heat absorption!

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Have your child kick off their summer vacation by making a miniature water slide!

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this design challenge, your child will make a bottle rocket using typical household items.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

Discover how and which salt melts ice the quickest.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.