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

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

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Test whether plants can grow without sunlight and water.

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

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

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

Test your friends to find out if you can replicate the placebo effect's incredible results.

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?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

This science fair project idea investigates whether air has mass and weight.

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

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

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

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

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

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

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 project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

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