In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

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.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

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

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?

In this project students experiment with making music using only glasses of water.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

The purpose of this science fair project is to build a basic radio.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

This science fair project idea investigates how color affects temperature.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

The project investigates which soft drink is worse for your teeth by observing the affect of soft drink on limestone.

The project determines which laundry detergent is best for cleaning clothes.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

Find out whether packaged seeds actually do expire in this new science fair project idea.

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 looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.