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

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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

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

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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 determines if the temperature of rubber effects how high it bounces.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

This science fair project idea explores the different properties & interactions of sugar molecules.

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

An home science experiment for older students that teaches about the science behind heat.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project idea produces varying pitches of sound.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

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

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

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

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.