Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

This experiment will explore if a randomly iterated algorithm will result in a pattern.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

This science fair project idea demonstrates how our fingers prune when in water.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

This science fair project idea investigates how different disinfectants work in killing germs.

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

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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

Brighten up your home with this fun activity! Make a summer sun print and teach your child the art of easy print making.

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

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