Science fair project that examines condensation and the conditions needed in order for dew to form.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

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.

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.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

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.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

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.

This science fair project idea investigates how color affects temperature.

In this science fair project you will make a model of a cell membrane using very simple material.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

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

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

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