This pitch back watermill model actually
links to a dynamo and makes electricity
to run a small motors. Your class will be
able to measure current output based
on water flow and evaluate this source
of energy with others.
Students move outside and use a high
pressure hose to turn a Pelton Wheel.
(Under supervision of course!)
Who can guarantee sunshine? Certainly, the
UK weather is unpredictable. Despite this,
improving technology is able to generate electricity
from daylight. A variety of solar panels
in the classroom will demonstrate that useful
amounts of energy can be obtained. This may
power electric motors or LCD displays.
All energy derives originally from the sun and
pupils will connect a series of concept cards
to prove this. E.g. Sun > evaporates water >
condenses and falls as rain > collected behind
dams > turns turbines that make electricity/
.The students also get to make siphons and
get their heads around hydrostatic pressure.
Using this wind turbine kit designed by
the National Energy Foundation, students
will discover the optimum number of
vanes to generate electricity. (Fair testing
revisited) They will realise that you
don’t get something for nothing– even
with wind power when they use the wind
turbine to run small devices.
Using an electric fan, student at once
realise that any energy producing
machine is nowhere near 100% efficient
Using a Mamod model steam engine,
like the one shown here, students will
generate electricity to run LEDs. They
will explore the gamut of fossil fuels
available and how insulation saves
energy. PowerPoint presentations
follow up this theme by looking at
reserves of fossil fuels left on the planet
and our insatiable appetite for energy.
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