Kindergarten - 4th Grade Physical Science Activities : Page 2

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

I scream, you scream, we all scream for homemade spearmint ice cream!

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

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.

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

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

This science fair project idea produces varying pitches of sound.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

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

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

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

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.

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.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

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 we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.