3. Do these activities and apply your knowledge.
(1) Look at the pictures of what Jenny does on pages 20–21 again. Do Jenny and her family do anything to save energy? Can you give them some advice? (2) How can we save energy at home and at school? Activity Booklet 20
We need to cherish energy and use it wisely. e
wind power
solar power
hydropower
coal
oil natural gas
Non-renewable energy
Renewable energy
limitations in their development
will be used up
will not be used up
Sources
Energy
turning off unnecessary appliances
lighting
making products
Use of energy
Save energy
using fewer appliances
using more natural light
using electrical equipment
transport cooking
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