Suggested Answer Key
A: I know hydroelectric power is produced using dams, waterfalls or in any place where water flows downhill. But I don’t know anything about geothermal energy.
B: Geothermal energy is produced using the heat from the Earth’s core. It heats up water, turns it into steam and turns a turbine.
C: That’s fascinating! I think I once saw machines in the sea that help generate energy using wave power. Every time there was a wave, the
machine moved and turned a turbine.
A: I’ve never seen that. Although, I do know a little bit about biomass and biofuels. They are both produced using organic matter from plants.
C: I don’t know much about biogas, but I know they have a biogas tank at the local farm. The farmer puts the waste in there and it's broken down by bacteria to produce a really smelly gas.
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Feedback:
“The praise” method
“Good job!
Well done!”
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Whiteboard
PPT (With words)
Pupils Book
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Listening & Reading
Ex.3 p.78
Aim: to introduce the topic; to listen and read for specific information
• Read out the definition and elicit whether Ss have heard of 'energy storage' before.
• Ask Ss to write down two questions they have about energy storage.
• Play the recording. Ss listen and check if they can answer their questions.
• Ask various Ss to share their questions and answers with the class.
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Suggested Answer Key
1 How can we store energy? (We can use batteries such as lithium-ion batteries.)
2 What are the benefits of using energy storage? (We can have energy any time we need it.)
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Feedback:
“The praise” method
“Good job!
Well done!”
|
Whiteboard
PPT (With words)
Pupils Book
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