1. Simple Machines

2. Tools that make work easier

3. lever

4. A stiff bar that moves about a fixed point (fulcrum)
A stiff bar that moves about a fixed point (fulcrum). It is a simple machine that is used to push, pull, or lift things.
Examples: seesaw, crowbar, shovel

5. Inclined plane

6. A flat surface that is raised so one end is higher than the other
A flat surface that is raised so one end is higher than the other. It helps move heavy objects up or down.
Example: ramp

7. wedge

8. Is wide at one end and pointed at the other to help cut or split other objects.
Examples: knife or ax

9. Wheel and axle

10. Consists of a rod attached to a wheel
Consists of a rod attached to a wheel. A wheel and axle makes it easier to move or turn things.
Examples: bicycle wheels, roller skates, doorknob

11. Screw

12. An inclined plane wrapped around a cylinder or cone
An inclined plane wrapped around a cylinder or cone. Often used to hold objects together.
Examples: jar lid, wood screw

13. Pulley

14. A wheel that has a rope wrapped around it
A wheel that has a rope wrapped around it. Can be used to lift heavy objects by changing the direction or amount of force.
Examples: flagpole

15. Compound Machine

16. A combination of two or more simple machines

17. Examples of Screws

18. Jar lids, drill bits, screw

19. Examples of pulleys

20. flagpole

21. Examples of inclined plane

22. ramp

23. Examples of wedges

24. Ax, knife, door-stop

25. Examples of lever

26. Seesaw, crowbar

27. Examples of wheel and axles

28. Wagon, doorknob, skateboard

29. Examples of compound machines

30. Scissors, bulldozer, hammer