This science fair project idea investigates the difference in reaction times between boys and girls.

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

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

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.