This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

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.

In this science fair project, young children notice and track changes in trees throughout the year.

Plants and light seem to be good buddies, but how far does the friendship really go?

Find out which type of sponge holds the most water.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

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

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

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

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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

This activity is a fun challenge for students who have just started learning to program educational robots.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.