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.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

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.

This science fair project idea investigates how the shape of an object affects drag.

In this project children practice the scientific method while playing with puffy paint.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

This science fair project teaches students about wilting and browning of salad greens.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

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 cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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.

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

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This project examines whether people's taste perception is influenced by what they see.

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

Using a toy race car kids create a visual model of the Doppler Effect.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates which objects float and sink in honey, water, and oil.