pulley
lever
inclined plane
wedge
screw
100
what is a pulley
a rope on a wheel to pull something into the air.
100
what is a lever 
a bar on a fulcrum
100
what is an inclined plane
a ramp to get from low to high
100
what is a wedge 
2 inclined planes that are stuck together.
100
what is a screw
a metal shaft with spiral threads
200
how do you use a pulley
you pull on one end to lift something up with less strength
200
what is the triangle under the bar called
fulcrum
200
what do two inclined plains make
a wedge
200
name a type of wedge
ax,
knife, 
etc.
200
how do you use a screw
you spin it left to screw into something to hold something or to connect two pieces together
300
what is an example of a lever
teeter totter, skat board, etc