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

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

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.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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

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

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

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

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

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.

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

This science fair project idea produces varying pitches of sound.

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

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!

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

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

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

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

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

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

This surprisingly good glue recipe comes from common kitchen items.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.