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How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

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

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

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

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

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

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.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be challenged to make a tower using paper cups.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Cleaning can be a chore, but not with this sudsy experiment!

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

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

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 activity your child will create their very own marble maze!

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

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

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.