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Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Find out which kind of bubble wrap fares best when put in impact.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

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.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

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

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

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Will the shape of an ice cube impact how fast the ice melts?

Construct batteries that make electricity from fruits with this fun science fair project.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

This biodiversity project examines the biodiversity in your own backyard.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

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.

Find out whether matte or shiny nail polish lasts longer.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Find out whether a longer airplane will fly farther or a wider paper airplane.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.