Random Shost from our Simple Machines Unit

Below are some pictures showing students working on two of our simple machines labs dealing with screws and levers.

Screws:  Students were learning that the distance between the pitch on a screw makes a difference.  The closer ther pitch, the easier to turn, but the more turns it would take.  The farther the pitch, the less turns required but it needed greater force.

                                          Levers:  One of three labs dealing with the lever.