This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project investigates why the number of visible stars changes from place to place.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

In this science fair project, students use the streak test to tell minerals apart from each other.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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.