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

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

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

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

This science fair project examines how seeds hitchhike on animals and clothing.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

This science fair project idea determines what household items are good conductors of electricity.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Do you think heat can affect a plant's growth rate?

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!