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

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

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.

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.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this project children practice the scientific method while playing with puffy paint.

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 science fair project idea investigates how the shape of an object affects drag.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

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

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This classic children's game demonstrates how sound travels through air vs. through a solid.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

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

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.