Preschool - 3rd Grade Physical Science Resources : Page 3

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

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

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

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

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.

Introduce your child to science with something they see everyday--their shadow!

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.