2nd - 4th Grade Physical Science Activities : Page 2

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.

This science fair project idea produces varying pitches of sound.

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!

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!

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

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.

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

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

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

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.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

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

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

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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

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

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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

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

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

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

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