3rd and 4th Grade Physical Science Activities : Page 2

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

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

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

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

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

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

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

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

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

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

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

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!

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

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

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

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.

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

This science fair project idea produces varying pitches of sound.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

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

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!