In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

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

This science fair project idea explores how length affects the weight a bridge can hold.

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

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

Make a lei and bring a touch of the tropical lifestyle into your home!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

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

Here's a pressed leaf card project that puts science and writing together for your second grader.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

This science fair project examines how seeds hitchhike on animals and clothing.

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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.