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

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

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

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!

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Making your own glass cleaner is easy, effective and inexpensive!

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

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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

This surprisingly good glue recipe comes from common kitchen items.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

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

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

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

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

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

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

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

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!