1. ENERGY RESOURCES

2. Why is there an energy problem ?

3. Waste heat All the countries in the world use lots of energy We are running out of some sources of fuel

4. Using Energy Extra carbon dioxide in the atmosphere is causing global warming. Sulphur dioxide is causing acid rain

5. Waste heat We waste too much energy from our houses We should make our houses better

6. Coal fired power stations

7. Coal Coal is burnt To boil water To make steam To spin turbines To drive generators

8. Coal fired power station 1 m 11 s Fossil Fuels

9. Coal The remains of trees that fell into swampy forests millions of years ago Mainly carbon found in seams compressed by the rocks above

10. Coal fired power station 0 m 20 s Burning coal

11. Coal fired power station 0 m 40 s How a turbine works

12. Using Energy The electricity made by the turbines is sent round the country through the National Grid.

13. Coal fired power station 1 m 0 s How a condenser works

14. Coal fired power station Condenser Turbine Coal powder Boiler Generator 1 m 20s

15. Nuclear power stations

16. Nuclear Atoms are split To boil water To make steam To spin turbines To drive generators

17. Nuclear power station 2 m 10 s Nuclear power

18. Nuclear power station Control rodsTurbine Steam Fuel rods 1 min

19. Nuclear power station 0 m 20 s Chain reaction

20. Wind power

21. Wind Wind turns propellers To drive generators

22. Wind power There are strong winds in many places around the World

23. Wind power 0 m 36 s Wind power

24. Some designs use propellers and some use wing designs Horizontal axis Vertical axis

25. Wind power 1 m 10 s Environmental impact

26. Hydroelectric power

27. Hydroelectric Water in a high lake Rushes down a pipe Turning a turbine To drive generators

28. Hydroelectric power station 1 m 44 s Hydroelectric power

29. Hydroelectric power station 1 m 0 s Environmental impact

30. Biomass

31. BIOMASS Biological material burns To boil water To make steam To spin turbines To drive generators

32. Biomass – Biological matter that can be burnt Chicken droppings Cow slurry Biomass power stations

33. Biomass engine 1 m 10 s Biogas engine

34. Tidal power

35. TIDAL Sea water rushing in Spins turbines To drive generators

36. Tidal power 0 m 25 s Tides

37. Tidal power The tide pushes past turbine – generators as it fills and then empties an estuary It has been suggested that the Bristol Channel might be a good place for this

38. Wave power

39. WAVE Wave movement Spins turbines To drive generators

40. Wave power 0 m 12 s The cause of waves

41. Wave power Waves make Salter’s Ducks or Clams bob up and down turning generators

42. Wave power Water waves pressurise air to turn turbines 0 m 15 s Wave power

43. Oil and gas

44. OIL and GAS Oil and gas are burnt To boil water To make steam To spin turbines To drive generators

45. Oil and gas They are formed from tiny creatures that lived in the sea millions of years ago. Both are found under anticlines (domed shaped rocks) which are impermeable (do not let fluids through)

46. Solar

47. SOLAR CELLS AND PANNELS Heat and light from the Sun Either heats water Or makes electricity

48. Solar Cells Turn light into electricity but it is not very efficient and cells expensive to make

49. How do the different methods compare ?