Emil Kraepelin!!!Famous Scientist!!!!
1. Inclined plane ( A flat surface that has one end higher than the other)
2. Wedge( Is used to split objects a part)
3. Screw ( Is like an Inclined plane, but this wraped around a cylinder)Example: an spiral Staircase
4.Lever (their is class 1,class 2,and their is class three)
5. Wheel and Axle( A wheel attached to a bar so that they rotate)
6. Pully (Its used to carry objects up)