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For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Can you win a staring contest? Would your performance be influenced by your eyesight? Find out in this science fair project idea!

This project explores differences in people's reactions to images in color and images in black and white.

This science fair project studies whether DSLR and Point-and-Shoot cameras work the same way under all conditions.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This science fair project idea assesses the effect of music on work performance.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

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 baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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

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.