1st - 5th Grade Physical Science Resources : Page 4

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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

Learn with makes water molecules work with this fun and easy science activity!

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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