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

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

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

This science fair project teaches students the differences between fruits and vegetables.

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

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

This science fair project idea examines the reason boats are shaped and engineered.

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

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

In this science fair project, young children notice and track changes in trees throughout the year.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

In this activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

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.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

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

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

This project determines what category of person is most likely to be ticklish.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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