Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

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

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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!

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