This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

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

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.