Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Make over an old shirt that's destined for the thrift shop with this heart cut-out craft for Valentine's Day.

Here's a fun activity to show your child how to use prefixes and root words to "root out" the meaning of a word!

Stay active over summer vacation with this fun take on the old favorite Red Rover!

This activity teaches your third grader how to make a paper cut-out still life, in true Matisse-style.

The project determines which laundry detergent is best for cleaning clothes.

Filling out forms can be a great learning experience for kids. Here's how to give your child some FORMal training.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Use a basic tape recorder and some favorite books to help your first grader read smoothly--and make someone's day in the process!

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

Build an electroscope, a simple device that measures static electricity, or the freely flowing electrical charges of the atmosphere!

Investigate which substances are most effective at removing salt from water.

Play a phonics scavenger hunt no matter where you are. This game will have your child sounding out words and finding letter sounds in the objects around them.

This craft is an excellent way to learn about African-American history, and it also provides fine motor practice.

Teach your fifth grader the ancient Japanese art of origami with this incredible origami balloon that uses just one piece of paper!

In this creative arts and crafts activity, children will design and create their very own alphabet tree!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

When it comes to working kids' muscles, nothing beats an obstacle course! Here are some easy ideas for creating your own course at home.

Challenge your fourth grader to try to recreate the geography of her state using just flour, salt, and water.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

Celebrate spring with a cute cut-out bug button your child can make out of colorful felt and markers!

In this activity, you'll find out an easy way to make your own pretend potato -- out of an old pair of stockings!

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Recycle, reduce, and reuse with this T-shirt purse craft. Kids can make their own functional bag out of worn-out T-shirts.

Is your kid all bent out of shape? Try out some trendy dog yoga, or "doga," with your pet dog!

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

Practicing letters and words by writing them out is all well and good, but spelling out your practice words with old puzzle pieces is a lot more fun!

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!