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.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

Create an outer space painting with chalk, water and black paper in this art project that explores the solar system.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

In this experiment you will use plastic and magnets to test your local soil composition.

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

Have your child try this classic experiment that demonstrates circular motion using a bucket and rope. Be careful, you might get soaked!

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Make your own recycling game that helps teach your child what can and should be recycled.

The project investigates how water and movement affects erosion.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

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!

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

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.

Science fair project that determines whether mass and weight are the same or different.

Looking for a project on fossils? Check out this fun science fair project idea to understand the process of coal formation and fossils part in that formation.

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

Help your preschooler understand that the surrounding world is made up of a varied combination of land, air and water with this simple activity.

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

Using plants and other items from the outdoors and clothing they already own, your kids can dress up as any one of the four seasons or simply as a Garden.

This science fair project idea produces consumable fresh water from salt water through desalination.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

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