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.

Construct and experiment with a periscope using reflected light rays to gather an image.

In this fun experiment, we'll find out how color affects heat absorption!

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

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

This science project allows students to study the psychology of happiness.

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

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This science fair project idea determines the probability of a coin landing heads or tails.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Is it a square or a circle? See if you can trick your friends with this zany science project!

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.