4th and 5th Grade Physical Science Activities : Page 2

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

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.

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.

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

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

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

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

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

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

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

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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.

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.

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

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

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

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Try this chemistry experiment with your curious kid and get some "shocking" results!

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!