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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!

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

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

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

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

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.

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.

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

Give your budding young observers a chance to discover simple machines at use in their own home.

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.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

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

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

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

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

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.

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

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

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

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

What better way to nurture your child's imagination than by making a fairy house out of materials found in nature!

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.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

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.