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Graded Assignment SCI203B: Biology | Unit 5 | Lesson 12: Laboratory: Patterns of Succession
Name: Date: Graded Assignment Lab Report The photographs in the Lab Report are the same photos you viewed in the on-screen slide show. They were taken after Mount Saint Helens erupted in Washington State in 1980. For the Lab Report, you will compare and contrast the photos, and make observations of the biotic and abiotic factors present in each. If you wish, you may go back to the on-screen slide show to view the photos while you keep the Lab Report open and answer the questions. Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.
(5 points)
Score
1. This photograph was taken at a location on Mount Saint Helens called Meta Lake. The area was clear-cut before the volcano erupted in 1980, meaning that all trees were cut down and used for timber or other products. The photograph was taken in 1983, 3 years after the volcano erupted. Describe the biotic and abiotic factors you see in the photograph.
Answer:
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(5 points)
Score
2. This photograph was taken in 1989, 9 years after Mount Saint Helens erupted. Compare this photo with the 1983 photo. What has changed? What looks different? How do you think those changes might have come about?
Answer:
(5 points)
Score
3. This photograph was taken in 1994, 14 years after Mount Saint Helens erupted. Compare and contrast this photo with the previous two. What changes do you see in the biotic and abiotic factors?
Answer:
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(5 points)
Score
4. This photograph was taken in 2004, 24 years after Mount Saint Helens erupted. Compare and contrast this photo with the previous three. What changes do you see in the biotic and abiotic factors? Does anything surprise you about this series of photographs?
Answer:
Your Score ___ of 20
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