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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.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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.

Slip some science into storm watching with a homemade rain gauge!

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

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.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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

In this science fair project, students make their own rain gauge to measure rainfall.

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.

Help your child add some flair to the family garden with pencil pinwheels!

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

This science project allows students to study the psychology of happiness.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

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

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

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