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 determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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.

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

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.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

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

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Test your friends to find out if you can replicate the placebo effect's incredible results.

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?

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

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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.

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

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

This science fair project idea explores how length affects the weight a bridge can hold.

Learn all about balance and motion as your child designs a corn maze!

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

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

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