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 demonstrates that light travels in straight lines and experiments with reflecting light.

This science fair project investigates why the number of visible stars changes from place to place.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This project compares the strength of one, two, and three-ply toilet paper.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

The goal of this project is to create an exciting topographical map out of dough.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

This science fair project idea examines whether boys and girls differ in reflexes.

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

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

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!

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

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

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 project investigates the affect of storage temperature on microwave popcorn.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.