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.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

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.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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

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

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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

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

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

In this fun activity, your child will create their very own solar oven to bake s'mores!

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

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

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

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.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

This science fair project idea produces varying pitches of sound.

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