How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

What's a crater, and how does it happen? Here's a kindergarten experiment with safe, nontoxic ingredients.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

In this project children practice the scientific method while playing with puffy paint.

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

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

Help your young scientist celebrate the wonders of the night sky in the comfort of your own home.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.