Can you make an elevator out of a spool of thread, some string and a hanger? Your friends might think it is magic, but it’s science at work! Here’s an easy experiement that has its ups and downs! 1.

After learning about the lever, wheel and axle, pulley, inclined plane, wedge and screw, the students designed a future Hilltop playground, one that included examples of each simple machine studied.

Find out more about the wheel and axel, the lever, and the wedge. Find out more about three of the six simple machines: the wheel and axel, the wedge, the lever. Simple machines like these help us do ...

From catapults to caterpillar tractors, machines throughout the ages have served man and lightened the workload. Fourth-graders at Hudsonville's Park Elementary School learned just how simple machines ...