This science fair project idea produces varying pitches of sound.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

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

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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

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

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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

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

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.

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

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

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

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.

Give your budding young observers a chance to discover simple machines at use in their own home.

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!

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

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

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

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.

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

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

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

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.

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.