This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This science fair project idea determines which method of hand cleansing is the most effective.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This classic children's game demonstrates how sound travels through air vs. through a solid.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Help your young learner discover why the insects that a spider eats stick to its web but the spider doesn't.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.

Make a kindergarten "discovery table" that reinforces both science and writing skills. Here's how:

Help your preschooler craft a homemade wind spinning device--a surefire to make your backyard sparkle, and teach her a bit about weather!

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Learn about this simple machine and make a pulley of your own to use for fun science trials.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Help your kindergarten science maven explore the water cycle without getting everything wet.