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 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!

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

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

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

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

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

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!

This science fair project idea produces varying pitches of sound.

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

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.

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!

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

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

How powerful is the reaction between baking soda and vinegar? Find out here!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

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

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!

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

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

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

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

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

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

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!

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.