2nd - 5th Grade Physical Science Activities : Page 2

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

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.

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.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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

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.

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

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.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This science fair project idea produces sounds by creating vibrations using different objects.

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.

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

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.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

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

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

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Give your budding young observers a chance to discover simple machines at use in their own home.

The purpose of this science fair project is to build a basic radio.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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