simple/complex machine experiments
In this free science fair project idea, we construct gears to turn a simple machine into a more complex compound machine.
Get free science fair project ideas for elementary school children that cover topics based upon machines.
This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.
In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.