This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

This science fair project idea produces sounds by creating vibrations using different objects.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Give your budding young observers a chance to discover simple machines at use in their own home.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.