Start your toy engines -- this is going to be a fast and friction-filled race!

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

In this science fair project, young children notice and track changes in trees throughout the year.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

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

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

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

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

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

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

In this activity, you'll send your kindergartener on a scavenger hunt to find sounds and create a sound recording. Here's how!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

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

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.