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How do organic materials become soil? This science experiment measures what materials biodegrade.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

I scream, you scream, we all scream for homemade spearmint ice cream!

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

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

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

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

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

This science fair project idea explores whether white light can be separated into different colors.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Engineers in training can get started with this simple wheel-and-axle construction activity.

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

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

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.

Take a closer look at the soil that surrounds us, and give your child a lesson in Geology 101!

Teach your child how butter is created by shaking up cream the old-fashioned way.

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!