Key scientific ideas – energy 1
Plants get their energy from the sun.
In a circuit, energy is transferred
from the cell to the bulb by an electric
current.
The sun is the ultimate source of
nearly all the energy on the earth.
Fossil fuels are convenient
concentrated stores of energy.
Energy can be stored:
•
In food and fuels (chemical energy)
•
In stretched elastic bands and springs (elastic potential energy)
•
In moving objects (kinetic energy)
•
Inside atoms (nuclear energy).
The amount of energy stored in food is measured in joules.
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Based upon an idea and approach developed by The Cams Hill Science Consortium.
Energy transfers by heating
Convection
Radiation
Conduction
The energy transfers in a torch
Light
Electric current
Surroundings
Cell
Bulb
Heating
Energy is
transferred by
heating by:
Useful vocabulary
Energy transfer
Kinetic
Renewable
•
Conduction
Food chain
Potential
Electric current
•
Convection
•
Radiation
Heating
Chemical
Surroundings
Light
Stored
Convection
Sound
Producer
Conduction
Joule
Consumer
Radiation
Fossil fuel
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