Using a toy race car kids create a visual model of the Doppler Effect.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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

This science fair project teaches students the differences between fruits and vegetables.

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

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.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

Is it a square or a circle? See if you can trick your friends with this zany science project!

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 project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

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

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.

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.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

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

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.

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

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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

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

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.

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

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!