WorksheetsCarbon Cycle (Gizmo)
Total questions: 30
Worksheet time: 16mins
Name
Class
Date
1.
In the process of photosynthesis, plants use the energy of the Sun to form ___ and ___ from ___ and ___.
a)
glucose and oxygen; carbon dioxide and water
b)
carbon dioxide and water; glucose and oxyge
2.
Most plant carbon is stored as ___.
a)
wood
b)
grass
c)
flowers
3.
A relatively small amount of plant carbon is consumed by animals.
a)
True
b)
False
4.
When land animals break down carbon food they can release ___ into the atmosphere.
a)
Carbon dioxide
b)
Methane
c)
Both
5.
Some forest fires are natural, but some are set by people to clear areas of forest for ___.
a)
agriculture
b)
the construction of solar farms
c)
wildlife parks
6.
Atmospheric carbon dioxide dissolves into ocean surface waters.
a)
The colder the water, the more is dissolved
b)
The warmer the water, the more is dissolved
c)
Temperature has no effect on how much dissolves
7.
Petroleum and natural gas are produced from buried ___.
a)
marine plants, algae and animals
b)
atmospheric carbon dioxide
c)
atmospheric methane
d)
water and oxygen
8.
In between the chain from atmospheric carbon dioxide to your car lies which step ___.
a)
land plants
b)
limestone
c)
marine plants and algae
9.
In between the chain from atmospheric carbon dioxide to a coal power plant lies which step ___.
a)
land plants
b)
limestone
c)
marine plants and algae
10.
Currently, about ___ of USA electricity is generated from burning coal.
a)
2%
b)
32%
c)
87%
d)
100%
11.
You might think that carbon trapped deep in Earth's crust would be locked there forever, but in fact subduction and the intense heat of the core release carbon dioxide through:
a)
volcanoes
b)
magnetic pole reversals
c)
hot springs
12.
Which of these is a real path in the carbon cycle?
a)
Atmospheric CO2 -> land plants -> limestone
b)
Atmospheric CO2 -> oceanic CO2 -> marine plants/algae -> coal
c)
Atmospheric CO2 -> land plants -> land animals -> soil
13.
Which of these paths is NOT a real path in the carbon cycle?
a)
Atmospheric CO2 -> land plants -> forest fire ->Atmospheric CO2 ->
b)
Atmospheric CO2 -> exposed rock -> oceanic CO2 -> shells and coral
c)
Atmospheric CO2 -> oceanic CO2 -> shells and coral -> coal
14.
Earth systems: Atmosphere, hydrosphere, biosphere, geosphere.
a)
air, water, living material, rocks and dirt
b)
water, air, living material, rocks and dirt
c)
air, living material, water, rocks and dirt
15.
Shells and coral are a part of which system?
a)
Atmosphere
b)
Hydrosphere
c)
Biosphere
d)
Geosphere
16.
Coal are a part of which system?
a)
Atmosphere
b)
Hydrosphere
c)
Biosphere
d)
Geosphere
17.
Carbon dioxide dissolved in the ocean is a part of which system?
a)
Atmosphere
b)
Hydrosphere
c)
Biosphere
d)
Geosphere
18.
Volcanic eruptions is a part of which system? (within the context of the carbon cycle)
a)
Atmosphere
b)
Hydrosphere
c)
Biosphere
d)
Geosphere
19.
Which one of these sources of carbon is NOT a part of the biosphere?
a)
shells/coral
b)
land plants
c)
marine animals
d)
petroleum
20.
Which one of these sources of carbon is NOT a part of the geosphere?
a)
Coal
b)
Petroleum
c)
Natural gas
d)
Dissolved CO2 in the ocean
21.
If global warming increases ocean temperatures, then how will that effect the amount of carbon dioxide in the atmosphere?
a)
The oceans will absorb more CO2 and reduce the amount of atmospheric CO2
b)
The oceans will release more CO2 and increase the amount of atmospheric CO2
c)
The oceans will have no effect on the amount of atmospheric CO2
22.
Atmospheric carbon transforms into fossil fuels over the course of ___.
a)
days
b)
years
c)
millions of years
d)
seconds
23.
There are many different paths within the carbon cycle. Could one path cycle back to its starting position within:
a)
a few days
b)
a few years
c)
a few millions of years
24.
Fossil fuels are used in many ways. 1) coal, 2) petroleum, 3) natural gas
a)
1) generate electricity, 2) fuel vehicles and make plastic, 3) generate electricity and heat homes
b)
1) fuel vehicles and make plastic, 2) generate electricity and heat homes, 3) generate electricity
c)
1) generate electricity and heat homes, 2) generate electricity, 3) fuel vehicles and make plastic
25.
What is the end product of burning fossil fuels (whether they are coal, oil or natural gas) and where does it go?
a)
Carbon dioxide; atmosphere
b)
Methane; atmosphere
c)
Oxygen; atmosphere
d)
Water; atmosphere
26.
When did human civilization begin to burn fossil fuels in significant amounts?
a)
10,000 BCE
b)
1200 CE
c)
Around 1850
d)
Around 1970
27.
In terms of complexity, which two cycles are the most similar?
a)
The rock and carbon cycle
b)
The water and rock cycle
c)
The carbon and water cycle
28.
With regard to time, the carbon cycle can be as quick as the ___ cycle and as slow as the ___ cycle.
a)
water; rock
b)
rock; water
c)
Sun; Moon
29.
What is the main ingredient to cement? (which is used in many human construction projects)
a)
Limestone
b)
Natural gas
c)
Petroleum
d)
Coal
30.
Carbon in marine sediments can return to the atmosphere via volcanoes which is powered by which process?
a)
Plate tectonics
b)
Water cycle
c)
Rock cycle
d)
Two answers are correct
100 %
