Page 65 - Big Ideas Year 10 sciPAD 2025
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SCIPAD - BIG IDEAS - BOOK 2
FUELS AND CLIMATE CHANGE
Carbon in fossil fuels
Respiration
Respiration
Respiration
Eaten by
Photosynthesis
Dissolving in the ocean and
photosynthesis by aquatic plants
Combustion
Volcanic Activity
Carbon in organic waste
Carbon in rocks
Combustion
decomposers - recycled - carbon cycle - carbon - sugars - photosynthesis - carbon
dioxide - respiration - locked up - combustion - consumers - decomposition - fossil fuels
The Carbon Cycle
Most of the molecules that make up living tissue contain .
When organisms die the carbon is so that it can
be used by future generations. The model that describes the processes
involved is called the . Large amounts of
carbon exist in the atmosphere as (CO2).
Carbon dioxide is absorbed by green plants (in the ocean and on land)
during the process known as
to make
organic molecules such as . These molecules are
passed onto when they eat the plant material.
Animals and plants release carbon dioxide back into the air as a waste
product from .
(such as bacteria and fungi) break down
dead organic matter, releasing carbon dioxide into the atmosphere.
Decomposers are essential because, without them, all of the carbon on
the planet would eventually become
in
dead carcasses and other waste. Sometimes
is prevented.
The plant and animal material may then be available as
in the future for . When fossil fuels are
burned, carbon dioxide is also released back into the air.
Carbon in
aquatic
organisms
Carbon in animals
Carbon in plants
Decomposers
Carbon dioxide in the atmosphere
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SCIPAD - BIG IDEAS - BOOK 2
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