In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Is it a square or a circle? See if you can trick your friends with this zany science project!

In this science fair project, students use the streak test to tell minerals apart from each other.

The project investigates how water and movement affects erosion.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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