13-10-2010, 03:13 PM
Alternative sources of energy
Lesson Objective
By the end of this lesson I will be able to offer an explanation for the need to use alternative sources of energy
Target 1 met?
What is an alternative source of energy?
An energy source that can be used instead of fossil fuels
It is usually a renewable source of energy that could be used should fossil fuels run out
Why is there a need for alternative sources of energy?
The graph that you completed last time shows just how much we rely on fossil fuels
90 per cent of the worlds energy supply’s come from fossil fuels
Fossil fuels are convenient and relatively cheap – a litre of petrol in 1998 would have been 20p if there was no tax added!
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