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

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

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

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

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

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project idea identifies trees using a dichotomous key.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

In this science project, the center of gravity is explored.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

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

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.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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.

This science fair project idea identifies clouds as a means of predicting the weather.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

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.