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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!

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

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

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.