Help!!!'' 10. What is needed to make a lever?
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11. In your own words explain what a simple machine is.
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12. List 4 different simple machines. _
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10.) A sturdy wooden ruler, piece of foam board, or thin piece of wood (we used a 24” piece of basswood, which can be purchased at a craft store)
A large binder clip.
Weights or variety of objects (or small paper cups and pennies to use as weights)
11.) any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
12.) Screw.
Wheel and axle.
Lever.
Pulley.

The correct answer is "the protesters were attacked by chinese troops and many were killed or arrested."