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Energy Needs 1. The amount of energy supplies now compared with the past 2. The change in 1970s 3. Ways energy is needed in one day for me and ; other.

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Presentation on theme: "Energy Needs 1. The amount of energy supplies now compared with the past 2. The change in 1970s 3. Ways energy is needed in one day for me and ; other."— Presentation transcript:

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2 Energy Needs 1. The amount of energy supplies now compared with the past 2. The change in 1970s 3. Ways energy is needed in one day for me and ; other possible energy needs

3 1.The amount of energy supplies now compared with the past We have 4 main sources of energy supply: a)coal b)oil c)gas d)nuclear

4 -in early 1900, the energy supply was below Jyr -1 -until 1975, the energy supply increase sharply to Jyr -1 -and the number keeps increasing steadily -it is estimated in 2050, the number will reach 10

5 2) The change in 1970 In 1973, the OPEC refused to export oil to western nations friendly to Israel after the started of Arab-Israeli War → the price for oil rose up sharply → new search for energy

6 3) Ways energy is needed in one day for me 3) Ways energy is needed in one day for me In school day: batteries for alarm clock lights Microwave oven cooking stove water boiling machine computer water heater washing machine Fan Fridge TV Cooker Telephone etc.

7 Other possible energy needs Media player Transportations Machines in different industries Communications Indoors Air- conditioning Educational tools Medical equipment More electrical appliances Stoves in restaurant Fuels etc

8 ~The End~ By Carmen Lee 6c, 3


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