This science fair project idea investigates how magnetism can defy the force of gravity.

Make frog feet sponge prints with your child for a fun and educational crafts activity.

This science fair project idea explores the different properties of matter.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

Make an edible play dough with your child to help her develop her sensory and motor skills.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this fun activity, your child will create their very own solar oven to bake s'mores!

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.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea identifies trees using a dichotomous key.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!