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.

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.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Teach your first grade scientist the difference between liquids and solids using maple syrup.

This science fair project teaches students the differences between fruits and vegetables.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

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

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Here's a pressed leaf card project that puts science and writing together for your second grader.

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

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

This science fair project will help students learn about non-vascular plants, such as mosses.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

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.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

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.

This science fair project idea investigates if fats add to the flavor of food.

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

Start your toy engines -- this is going to be a fast and friction-filled race!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

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