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Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

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!

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.

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.

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

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!

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

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?

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.

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

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.

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

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

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

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?

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