1. Which Simple Machine Can do That?

2. You need to lift a load. What simple machine can do that?
Pulley, inclined plane, lever

3. You need to cut something. What simple machine can do that?
wedge

4. You need something to turn or roll. What simple machine can do that?
Wheel and axle

5. You need to hold something together or in place
You need to hold something together or in place. What simple machine can do that?
screw

6. Compound Machines

7. COMPOUND MACHINES
A compound machine is a combination of two or more simple machines that operate together. 7

8. COMPOUND MACHINES
Many familiar compound machines, such as a car, a washing machine, or a clock, are combinations of hundreds or thousands of simple machines. 8

9. Compound Machine Corkscrew
Wedge
Screw
Lever
Wheel and Axle

10. Compound Machine: Stapler
Simple machines in a stapler:
Wedge
Lever

11. Compound Machine: Scissors
Simple machines in a pair of scissors:
Wedge
Lever

12. Compound Machine: Nail Clippers
Simple machines in nail clippers:
Wedge
Lever

13. Compound Machine: Bicycle
Simple machines in a bicycle:
Lever (hand brake)
Lever (pedal)
Wheel and axle (pedal)
Pulley system (chain/gears)

14. Compound Machine: Pizza Cutter
Simple machines in a pizza cutter:
Wedge
Lever
Wheel and axle

15. Compound Machine: Wheel barrow
Simple machines in a wheel barrow:
Wheel & Axle
Lever

16. Compound Machine: Bulldozer
Simple machines in a bulldozer:
Wedge
Lever
Wheel and axle(s)