This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

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

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

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

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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.

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

The project investigates how water and movement affects erosion.

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!

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.

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

In this project, the affect of acid rain is simulated by the acid, vinegar.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.