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Worksheets

Abiotic Cycles

Total questions: 35

Worksheet time: 24mins

Name
Class
Date
1.

What part of the water cycle does this picture show?

a)

condensation

b)

precipitation

c)

evaporation

d)

transpiration

2.

What is it called when plants give off water vapor as a waste product?

a)

condensation

b)

precipitation

c)

evaporation

d)

transpiration

3.

What part of the water cycle does this picture show?

a)

condensation

b)

precipitation

c)

evaporation

d)

transpiration

4.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
5.
Plants and animals cannot use nitrogen directly from the air.
a)
True
b)
False
6.

What converts nitrogen into a useable form for plants and animals?

a)

bacteria

b)

fungi

c)

plants

d)

animals

7.
Animals obtain the nitrogen they need directly from the
a)
soil in their habitat
b)
air they breathe
c)
plants they eat
d)
bacteria living within them
8.

What cycle is reprsented in the picture?

a)

The Water Cycle

b)

The Carbon Cycle

c)

The Nitrogen Cycle

d)

None of the above

9.
When nitrogen gas is turned in to a form that plants and animals can use is called 
a)
Combustion
b)
Photosynthesis
c)
Decomposition
d)
Nitrogen Fixation
10.

One of the nutrient cycles moves from an atmospheric gaseous form to the soil through both abiotic and biotic processes, moves through the food web, then is returned to the soil or to the atmosphere. Which cycle fits this description?

a)

carbon

b)

nitrogen

c)

phosphorus

d)

water

11.

How does carbon in a grass plant get into a lion?

a)

The lion eats an antelope that ate the grass

b)

Carbon from grass doesn't end up in a lion.

c)

The lion absorbs the carbon given off by transpiration

d)

The lion breathes in carbon given out by the plant

12.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
13.
Building proteins and DNA is the reason organisms need what substance?
a)
Water
b)
Carbon
c)
Nitrogen
d)
Calcium
14.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
15.

Which of the following is the correct general equation for PHOTOSYNTHESIS?

a)

CO2 + light + H2O --> O2 + Sugar

b)

CO2 + sugar + H2O --> O2 + light

c)

O2 + light + H2O --> CO2 + Sugar

d)

CO2 + O2 + H2O --> Light+ Sugar

16.
Select the key processes involved in the carbon cycle
a)
neutralization, leaching and breathing.
b)
photosynthesis, respiration and combustion.
c)
volcanic eruptions, hydrogen burning, and death.
d)
protein production, and precipitation.
17.

Where does the phosphorous cycle begin?

a)

Rocks

b)

Atmosphere

c)

Plants

d)

Animals

18.

Which cycle is considered the slowest?

a)

Carbon

b)

Hydrologic (Water)

c)

Phosphorous

d)

Nitrogen

19.

What is the process called when bacteria change nitrates into nitrogen gas, returning it back into the atmosphere?

a)

Nitrification

b)

Nitrogen Fixation

c)

Ammonification

d)

Denitrification

20.

All of the following are fossil fuels EXCEPT...?

a)

Oil

b)

Soil

c)

Natural Gas

d)

Coal

21.

Which cycle is driven by the Sun?

a)

Nitrogen

b)

Hydrologic (Water)

c)

Carbon

d)

Phosphorous

22.

Liquid water that runs along the surface and collects into a river, lake, or ocean is called?

a)

Infiltration

b)

Groundwater

c)

Surface Runoff

d)

Evaporation

23.

Rain, snow, sleet, and hail are examples of what?

a)

Precipitation

b)

Evaporation

c)

Condensation

d)

Transpiration

24.

Which of the following must occur before precipitation can occur?

a)

Surface Runoff

b)

Evaporation

c)

Condensation

d)

Transpiration

25.

Which process captures carbon dioxide from the atmosphere and uses it to make sugar?

a)

Deforestation

b)

Cellular Respiration

c)

Photosynthesis

d)

Pollution

26.

How do humans negatively impact the nitrogen cycle?

a)

Fertilizers causing Eutrophication

b)

Urinating

c)

Littering

d)

Cleaning/Purifying Water

27.

What is the main thing that carries out Nitrogen Fixation?

a)

Lightning

b)

Bacteria

c)

Plants

d)

Humans

28.

Describe how human's negatively impact the water cycle (short answer- need detail)

a)

Pollution

b)

Deforestation

c)

Building on and paving areas

d)

All of the above

29.

Describe how humans negatively impact the Carbon Cycle (short answer- need detail)

a)

Cutting down trees

b)

Eating plants

c)

Combustion (putting CO2 into the atmosphere)

d)

Cellular Respiration

30.

The systems that recycle the chemical elements & water that are needed by organisms in their ecosystems are called ___. They use both abiotic and biotic factors from the environment.

a)

biogeochemical cycles

b)

exchange pool

c)

condensation

d)

photosynthesis

31.

Living things such as trees, insects, fish, and bacteria are known as

a)

Biotic factors

b)

Abiotic factors

32.

Nonliving things such as rocks, water and air are known as

a)

Biotic Factors

b)

Abiotic Factors

33.

True or False. Nitrogen is found in the atmosphere.

a)

True

b)

False

34.
The process of plants losing water through their leaves is called ____.
a)
condensation
b)
evaporation
c)
transpiration
d)
exhaling
35.
Which nutrient is not cycled through the atmosphere?
a)
carbon
b)
nitrogen
c)
phosphorous
d)
water