This document discusses different types of machines and how they work. It explains that there are simple machines that have few parts like levers, pulleys, wedges, wheels and axles, screws, and gears. There are also more complex machines that have many parts, like computers. The document also outlines where different machines get their energy from, such as electricity from sockets or batteries, or older machines running on steam or water power. Basic safety tips are provided around using machines and being careful with electricity.

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. EVER AND FULCRUM
MAKE A SIMPLE MACHINE

12. AN INCLINED PLANE IS A SIMPLE MACHINE

13. A PULLEY
S 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. SIMPLE MACHINES SUMMARY

19. MACHINES NEED ENERGY TO MOVE

20. SOME MACHINES ENERGY COMES
FROM AIR

21. SOME MACHINES ENERGY COMES
FROM WATER

22. SOME OLD MACHINES ENERGY
COMES FROM STEAM

23. SOME MACHINES ARE POWERED BY
ELECTRICITY

24. ELECTRICITY COMES FROM THE
SOCKET

25. ELECTRICITY ALSO COMES FROM
BATTERIES

26. COMPUTERS ARE ALSO VERY COMPLEX MACHINES

27. SAFETY AROUND MACHINES

28. DON’T PUT ANYTHING INSIDE SOCKETS NOR
TOUCH BROKEN CABLES (DON’T CHEW THEM
EITHER!)

29. NEVER USE ALECTRIC APPLIANCES
NEAR WATER

30. DON’T PLUG MANY THINGS TOGETHER