This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

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

In this experiment you will replicate the mummification process by making a hot dog mummy.

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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

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.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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

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

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

This science fair project teaches students about wilting and browning of salad greens.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

This science fair project idea demonstrates that plants give off water.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

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

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.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

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

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!

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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.