Identification should include

•    wheel and axle
•    inclined plane
•    wedge
•    screw
•    pulley
•    lever.

Identification should also include examples, such as

•    windmill, fan (wheel and axle)
•    roller coaster, stairs (inclined plane)
•    chisels (wedge)
•    door lock, drill (screw)
•    flag pole, window blinds (pulley)
•    seesaw, shovel (lever).

Process/Skill Questions:

•    What are examples of commonly used simple machines?
•    How does a simple machine relate to a compound machine?
•    What are examples of each type of machine?