3.14.2011

Science Unit: Levers & Pulleys

Discussing their hypothesis during our lever experiment.
Testing their hypothesis with their materials.
Teamwork!
We learned about all three classes of levers and that they each need a fulcrum, force, and effort.
Next we learned about pulleys.
We tested different ways to lift a milk jug off the ground with pulleys.
Multiple ideas were tested. Then students recorded and discussed their observations.