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.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Using a toy race car kids create a visual model of the Doppler Effect.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

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

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

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

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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

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

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

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

The concept of metamorphosis is fascinating to children of all ages. Help your child's creativity take flight as she makes her very own butterfly life cycle.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.