In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

This science fair project idea investigates how color affects temperature.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science fair project idea investigates how magnetism can defy the force of gravity.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

In this project students experiment with making music using only glasses of water.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.