The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

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

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

Give your budding young observers a chance to discover simple machines at use in their own home.

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

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.