This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!