2. “We do not inherit the
earth from our
parents, we borrow it
from our children” –
Chief Seattle
3. Energy use has
changed a great deal
since people relied
solely on the sun, their
own strong bodies or
beasts of burden as
energy resources.
4. Long ago, people
learned how to use
water power to turn
paddle wheels and
wind power for
transportation and
irrigation.
5. People learned to use
the chemical energy
stored in materials like
wood to cook and heat
their homes.
6. But machines and
technologies
introduced during the
Industrial Revolution
of the late 18th century
required the use of
other energy resources,
especially fossil fuels.
7. Fossil fuels like coal, oil
and natural gas are
considered to be
nonrenewable energy
resources.
8. Our fossil fuel reserves
formed over millions of
years from decaying
plants and animals.
As we use them up,
they will not be
replenished in our
lifetimes.
9. With the modern world
depending upon coal, oil
and gas for a majority of its
energy needs and the
prediction that the world
will nearly double its need
for energy resources in
several decades, it is
important to conserve
energy and to investigate
alternate energy resources
10. There are many renewable
energy sources that are
alternatives to fossil
fuels, but some are not
without controversy.
For instance, nuclear
power is used to generate
about 25 percent of the
world’s electricity, but it
has inherent
risks, especially in the
disposal of radioactive
waste.
11. Hydroelectric plants use running water to generate
electricity, however they may flood nearby lands and can
disrupt the normal flow of water, both of which negatively
affect the environment.
12. Wind power is
increasingly being used
as a clean source of
renewable energy.
Turbines harvest wind
on wind farms and
generate electricity.
13. Solar power is a promising, renewable energy
resource than can be turned into electricity, and it
is used in many toys and even home heating.
14. Many other alternative
energy sources like
geothermal power, which
draws upon the earth’s
natural heat, and
biomass, which produces
an alternative to
gasoline, are being
considered in the
movement away from fossil
fuel dependence.
15. In our everyday lives, we can also work to conserve energy.
Insulating, turning off lights and only using appliances like dishwashers
when they are full are just some of the ways people can limit energy use in
their homes.
Also, carpooling, bicycling, and taking public transportation are effective
energy-saving ideas.
16. The earth’s inhabitants
must take a serious
look at energy
resources, use and
conservation.
17.
18. How To Use This Lesson
Go-Givers’ PowerPoints are designed to inform and support critical
thinking and discussion. They can be used in their entirety. However,
please feel free to save this lesson to your computer and edit, omit or
add content as appropriate for your pupils.
Please remember:
• Always show the PowerPoint in ‘slide show’ view. Links and
animations will only work when in this mode.
• The green dot in the bottom right hand corner of the slide
indicates when the slide animation is complete.
•The Learning Activities are intended for use in conjunction with the
PowerPoints and are linked at the end.
19. Learning Objectives
To take part in a simple debate about topical
issues.
To realise that people and other living things have
needs, and that we have responsibilities to meet
them.
To know what improves and harms our local,
natural and built environments, and about some of
the ways people
look after them.
33. You can turn off the lights when you don’t
need them!
34. Suggest that the grown ups who do the shopping
buy energy saving light bulbs.
35. Ask an adult to turn the heating down a
notch …
and set the clock so that it is on for less time.
36. Remind everyone to keep the doors and windows
shut when the heating is on, to keep the warmth
in.
37. You wear clothes to keep in your body heat.
Find out if your
home is
insulated to
keep the
warmth from
escaping
through the
roof.
38. Ask the people who put the kettle on to fill it
only with the amount of water that is needed.
That way it will take less energy to bring it
to the boil.
39. Remind the people who do the cooking to put
lids on the saucepans to keep the heat in while
the food is cooking?
40. Switch off! Don’t leave it on standby!
If you can see a light
like this when the TV is
off, it is using almost
as much energy as if it
was on!
41.
42.
43.
44. Glossary suitable
convenient – handy,
Source - starting place
Habitat - home, surroundings
Thermostat – a switch which turns something off
when it reaches a given temperature.
Insulation – material which isolates things from
the outside air temperature.
45. Activities to complete this lesson include:
• ‘best insulators’
experiment
• on/off switch
activity
• energy survey
Click on the image above to view
and/or download learning activities.
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