In your journal, identify which form of energy most likely caused the
changes described below. You can use your notes.
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1. A bar of chocolate left in the car melted.
2. A glass broke when the girl screamed really loud and high.
3. The color of a sheet of blue construction paper taped to a window faded
over time.
4. The handlebars of a bicycle rusted.
5. After walking across the carpet, a student feels a tingly shock when touching a
metal doorknob.
6. A frog uses powerful hind legs to jump across grass.
7. A light is turned on.
Energy can neither be created nor destroyed, it
just changes form.
Transforms
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Look at the example below, tracing back a car’s energy:
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The car’s moving
energy comes
from burning fuel.
Fuel’s chemical energy
comes from
decomposed microorganisms that lived in
the sea
The sun gets its energy
The tiny animals get
from the atoms inside it.
their energy from plants,
The sun is the source of
which get their energy
almost all the energy on
from the sun.
earth.
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Make your own diagram tracing back the energy in a
toaster as far as you can go.
Mechanical energy, Sound Energy
Electrical energy
Thermal energy