Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

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.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

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

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

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

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

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.