Grade 6
Ecosystems: Study Guide
Chapter 2.2-3.3 Test: Thursday, October 27, 2016
Textbook: p. 44-91
Write down the definitions of the following:
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altitude
biome
camouflage
canopy
carbon-oxygen cycle
cellular respiration
chlorophyll
climate
combustion
coniferous
cycle
deciduous
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desert
dormancy
enzyme
fossil fuels
grassland
hibernation
migration
mitochondrion
nitrogen cycle
nitrogen fixation
nocturnal
nodule
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permafrost
photosynthesis
pollution
savannah
stomata
taiga
temperate forest
transpiration
tropical rain forest
tundra
water cycle
Sec. 2.2 – Cycling of Matter (p.44-49)
KNOW:
1.) The parts of the water cycle (p.45)
Word bank: transpiration, evaporation (2x), precipitate (2x), condensation, infiltration
Table 1
2.) The parts of the carbon cycle (p.46-47):
Word bank: Combustion, respiration, decomposition, diffusion, photosynthesis, CO2 to air or extraction
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3.
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6.
3.) Fill in the diagram below with the corresponding letter (A-G) description (p.49):
A. Free nitrogen in the air
E. Nitrogen-fixing bacteria in root nodules/soil
B. Bacteria free nitrogen into air
F. Decomposers release nitrogen from dead organisms
C. Nitrogen fixed by lightening
G. Nitrogen used by plants & Animals eat plants
D. Usable nitrogen in soil
Note: Nitrogen Fixation is the process in which the N2 compound in the atmosphere breaks and combines with
other compound. The nitrogen is ‘fixed’ when it combines with hydrogen or oxygen.
Chapters 2.2-3.3
Short answer: Use the textbook pages listed to answer the following questions.
1. How do animals participate in the water cycle? (p. 45)
2. What is the process called that describes the loss of water vapor from a plant’s leaves? (p.45)
3. What kind of nitrogen can living organisms NOT use? (p.48)
4. What process allows for nitrogen to cycle between living and non-living things? Explain how it works.
(p.49)
5. List the products of photosynthesis. (p. 53)
6. List the reactants of photosynthesis (what goes into the plant) (p.53)
7. What gas is released by a decomposer? (p.54)
8. The carbon in dead and decaying organisms is released into the atmosphere as what gas? (p.54)
9. List the products (what is made) of cellular respiration. (p. 57)
10. List the reactants (what is used) of cellular respiration (p.57)
11. How do plants get the energy needed during the night? (p. 57)
12. What kind of plants grow in the tundra? (p.71)
13. How do thick layers of fat and fur help animals survive in the tundra? (p.72) What adaptation allows
bears to go months without food or water?
14. Which of the biomes has very short winter days with little light? (p.70)
15. What characterizes the temperate forest biome? (p. 86)
16. Which of the biomes is closest to the equator? (p.89)
17. Why do many rain forest animals live in the tree canopy? (p.91)
18. Give 2 reasons why the soil in a tropical rainforest is nutrient poor and give two ways plants adapt to
this soil type. (p.90)
19. List 3 animals that live in the taiga biome and explain why they are well-adapted to their environment.
(p.75)
20. List 3 adaptations a plant might have as a result of dim light (p.90)
21. List 3 adaptations a plant might have as a result of a humid (water-rich) environment. (p. 90)
True/False: Fill in the blanks with true (+) or false (o). If the statement is false, change the underlined word to
make it true.
_____Most deserts have soil that contains gravel, pebbles, and small rocks. (p.80)
_____The Arabian Desert in the Middle East is almost entirely covered with sand. (p.80)
_____ All deserts are hot all year round. (p.80)
_____ Winter snow is common in cold deserts. (p.80)
Figure:
Use the figure to answer the following question:
What elevation is likely the coldest and windiest?