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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

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

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.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

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

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

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.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

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.

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.

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

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

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.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

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.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

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?

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

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

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.