5 th six weeks

An unnecessarily complicated machine built to do a very simple task

Ring a bell Drop a marble into a cup Lift something Choose your own (YOU can share with the teacher BEFORE you begin to plan)

Four of the six simple machines Inclined plane Lever Pulley Wheel and axle Wedge Screw

1.Think of a design 2.Draw the plan 3.Write an explanation of the plan 4.You can share your plan with your teacher

Build and test your machine This will take a lot of time to get it right. EXPECT to have to make adjustments to your prototypes until you work out all the problems. DO NOT GIVE UP!

Drawn plan (25 pts.) neat approximately to scale labeled Written explanation (25 pts.) complete sentences with correct grammar, spelling, and punctuation in order of events from beginning to end Simple machine vocabulary included and used correctly Verbal explanation (25 pts.) clearly explained spoken clearly and loud enough to be heard from the back of the room appropriate tone and gestures eye contact with audience, NOT READING Successful demonstration (25 pts.) the machine performs as it should

You may work alone or in groups No more than three people in a group. Everyone in the group will receive the exact same grade.

The plan should be completed by Thursday, February 28, 2013 The machine is due by Thursday, March 21, 2013