This document provides an overview of simple and complex machines. It explains that simple machines like levers, inclined planes, pulleys, wedges, wheels and axles, screws, and gears have few parts, while complex machines have many parts. The document also discusses different sources of energy for machines, such as air, water, steam, and electricity. It notes safety tips for using machines, such as not putting anything in sockets or touching broken cables.

1. HOW DOES IT WORK?
1st grade CEIP Garre Alpañez

2. WE LIVE SURROUNDED BY MACHINES

3. But don’t be afraid, they are here to
help us!

4. MACHINES MAKE TASKS EASIER

5. We can’t do it without a machine

6. THIS IS ALSO A MACHINE

7. SCISSORS MAKE CUTING EASY

8. THERE ARE SIMPLE AND COMPLEX
MACHINES

9. SIMPLE MACHINES HAVE FEW PARTS

10. COMPLEX MACHINES HAVE MANY PARTS

11. LEVER AND FULCRUM
MAKE A SIMPLE MACHINE

12. AN INCLINED PLANE IS A SIMPLE MACHINE

13. A PULLEY
IS A SIMPLE MACHINE

14. A WEDGE
IS A SIMPLE MACHINE

15. A WHEEL AND AXLE MAKE A SIMPLE
MACHINE

16. A SCREW IS A SIMPLE MACHINE

17. GEARS ARE SIMPLE MACHINES

18. MACHINES NEED ENERGY TO MOVE

19. SOME MACHINES ENERGY COMES
FROM AIR

20. SOME MACHINES ENERGY COMES
FROM WATER

21. SOME OLD MACHINES ENERGY
COMES FROM STEAM

22. SOME MACHINES ARE POWERED BY
ELECTRICITY

23. ELECTRICITY COMES FROM THE
SOCKET

24. ELECTRICITY ALSO COMES FROM
BATTERIES

25. SOME MACHINES MOVE

26. THIS MACHINE IS CONTROLLED BY PEOPLE

27. THIS MACHINE IS NOT CONTROLLED

28. COMPUTERS ARE ALSO VERY COMPLEX MACHINES

29. SMARTPHONES ARE SMALL COMPUTERS

30. SOME PEOPLE EVEN WEAR A COMPUTER

31. THERE ARE COMPUTERS EVERYWHERE

32. SAFETY AROUND MACHINES

33. Don’t put anything inside sockets nor touch
broken cables (don’t chew them either!)

34. NEVER USE ALECTRIC APPLIANCES
NEAR WATER

35. Don’t plug many things together