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Learn how different types of soil affect how animal tracks form in this experiment!

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This experiment will investigate whether reward or punishment is more apt to motivate people.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Science fair project that demonstrates how stalagmites and stalactites are formed.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

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.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea explores which is better for diffusion and cell absorbing, more surface area, or more volume.

Can cells be frozen? This science fair project provides information to answer this question.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Explore convex and concave objects and how they reflect light.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

This science fair project idea identifies and understands adaptations in birds.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.