How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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

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

Learn all about balance and motion as your child designs a corn maze!

In this project children practice the scientific method while playing with puffy paint.

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

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

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

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Discover whether cold or hot water from the faucet will boil faster on the stove.

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