Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

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

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.

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.

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

Give your child a chance to experiment with how things grow. And throw in something extra to up the fun factor even more...her very own grass pet!

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

Let your young adventurer go bug hunting in the great outdoors with their very own bug net!

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

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

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.