Name
Block
Date
Group
PowerPoint Notes-Biogeochemical Cycles
1. What happens to matter within biogeochemical cycles?
2. What is the difference between the biotic and abiotic parts of the environment?
a. Biotic
b. Abiotic
3. Define a cycle-
Water Cycle
1.
Define the following:
a. Evaporation
b. Condensation
c. Precipitation
d. Transpiration
e. Run off
f. Accumulation
2. Use the terms above to label the diagram below
3. Parts of the water cycle
a. Abiotic
b. Biotic
Carbon Cycle
1. Why is this cycle sometimes called the Carbon-Oxygen Cycle?
2. How does carbon enter the biotic part of the environment?
3. How does carbon enter the abiotic (atmosphere) part of the environment?
a.
b.
c.
d.
4. Define the following:
a. Respiration
b. Photosynthesis
c. Decomposition
d. Combustion
e. Erosion
5. Use the terms above to label the diagram below.
Nitrogen Cycle
1. What amount of the atmosphere is made up of nitrogen (N2) gas?
2. Since living organisms can’t use N2 directly, how does it get into the biotic part of the
environment?
3. The four parts of the nitrogen cycle are:
a.
b.
c.
d.
4. Living organism use nitrogen to make
and
.
5. Can living organisms use nitrogen gas (N2) directly?
6. In what form can nitrogen be used by plants?
7. Which organisms can turn nitrogen gas (N2) into a form organisms can use?
8. Define the following terms:
a. Free N2 Bank
b. Nitrogen Fixation
c. Nitrates
d. Organisms
e. Organic Material
f. Denitrification
9. Use five of the terms to label the diagram below:
Phosphorous Cycle
1. Plants and animals need phosphorous for ________ and _______
2. Does NOT cycle through ______________, only land, water and organisms
3. Found in the form _______________ (PO4)
Deposition: organisms  ___________
Dissolution: land  ____________
Uptake by producers