1. Carbon Cycle Turning Point Game

2. 1. Where can you find carbon?
Only in the atmosphere
In water molecules
Inside the sun
In every living thing 30

3. 2. How is the carbon cycle similar to the water cycle?
Both involve liquids falling to the earth
Neither process works at low temperatures
Both involve the transfer of the substances between animals, plants and the earth
Both transfer substances between earth and outerspace 30

4. 3. How do animals add CO2 to the atmosphere?
Through breathing
Through evaporation
Through cellular respiration
Through transpiration 30

5. 4. What organisms in the ocean absorb the most CO2?
Algae and marine plants
Ocean mammals
Fish
coral 30

6. 5. What is a carbon sink? Something that adds carbon to the atmosphere
Something that removes carbon from the atmosphere
Something that adds carbon to the crust
Something that removes carbon in the crust 30

7. 6. What major historical event led to the imbalance in the carbon cycle?
The Civil War
American Revolution
French Revolution
Industrial Revolution 30

8. 7. Using less fossil fuels will help restore the equilibrium of the carbon cycle. What does equilibrium mean?
Oxygen
Balance
Resources
sinks 30

9. 8. How does carbon become locked inside the earth?
Tree roots release carbon as they grow
Humans use machines to pump it in the ground
Rocks become richer in carbon as time goes on
Carbon bodies of plants and animals decay into the earth after they die 30

10. 9. How do carbon emissions lead to global warming?
By trapping the sun’s heat in the atmosphere
By causing volcanic eruptions
By catching fire to the atmosphere
By increasing the amount of carbon in the earth’s crust 30

11. 10. Which one of the following statements is factual about carbon?
Humans use way too much carbon-based fuel
Carbon is the 4th most abundant element in the universe
There is no relationship between carbon emissions and climate change
Burning rainforests helps restore order to the carbon cycle 30