Vocabulary
Environmental Impact
Plant and Animal Interaction
Basics
Other
100
The Burning of a substance
What is combustion?
100
What has happened to the carbon dioxide levels in Earths atmosphere over the years?
It has increased
100
What role do plants play in the carbon cycle?
Plants absorb carbon.
100
What is the exchange of carbon between the environment and living organisms?
The carbon cycle
100
True or false: C + O2 = CO2
True
200
Molecules containing carbon
What is an organic molecule?
200
What is the largest contributor of carbon dioxide to the atmosphere?
Plant and animal decay
200
Name one way animals release carbon into the atmosphere.
Breathing, decaying
200
Carbon is the ____ most common substance on Earth.
Fourth
200
What does the chemical reaction 6CO 2 + 6H 2O (+ light energy) = C 6H 12O 6 + 6O 2 represent?
Photosynthesis
300
The breakdown of substances into simpler molecules
What is decompisition?
300
Name one way to cut back on carbon emissions
Plant more trees, find new energy sources, reduce number of trees cut down....
300
What is the largest man made contribution of carbon to the atmosphere?
The burning of fossil fuels.
300
Give an example of combustion.
Burning fossil fuels, trees....
300
True or False: C6H12O6 + 6O2 = 6H2O + 6CO2 + ENERGY is the chemical reaction for photosynthesis? If False, what is it the chemical reaction for?
False, cellular respiration
400
When plants use carbon dioxide to make sugars.
What is photosynthesis?
400
How does carbon dioxide contribute to the greenhouse effect?
Excessive levels heat up the atmosphere.
400
What makes plants carbon sinks?
They absord more carbon than they release
400
Where is carbon found?
Soil, water, air, Earth's mantle
400
Name the largest carbon sink on Earth.
The Ocean
500
When plants break down sugars to release energy.
What is respiration?
500
Name two ways the clearing of forests effects carbon levels.
Burning the trees releases carbon into the atmosphere, and there are less trees to "soak up" the carbon.
500
How do animals contribute to the carbon cycle?
They release carbon when they decay.
500
Name the 5 steps of the carbon cycle in order.
Photosynthesis, respiration/consumption of photosynthetic organisms, decomposition, combustion.
500
Name 1 inorganic and 1 organic sink.
The ocean and trees.
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