Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

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.

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

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

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

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

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

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!