This science fair project idea explores whether talking to a plant will help it grow.

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.

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

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

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

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

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

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

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

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

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

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

An home science experiment for older students that teaches about the science behind heat.

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

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

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.

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

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

This science fair project idea experiments with spinning color wheels and optical illusions.

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

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

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