In this science fair project, students use the streak test to tell minerals apart from each other.

Plants and light seem to be good buddies, but how far does the friendship really go?

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

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

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

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.

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

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.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Do different types of oil mix or stack? Find out in this science fair project idea!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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.

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.

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.

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

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This science fair project idea determines which method of hand cleansing is the most effective.

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.

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

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

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

This science fair project idea investigates if fats add to the flavor of food.

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