Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

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

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.