7th Grade SCIENCE (abbreviated) LAB REPORT: Populations & Ecosystems
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Name:
Date:
Question you are
answering/Problem
you are addressing:
Background Info:
In your own words, describe the relationship between limited resources in an ecosystem and competition among organisms in that ecosystem. (This should be 1-2 complete sentences.)
DATA COLLECTION
Read the information about graphs in your Pearson Online lesson:
Unit 3, Lesson 11, Page 2
Unit 3, Lesson 12: Page 1 (definitions), Page 2 (watch the video),
Be sure to type the names of the two organisms in the appropriate boxes.
Each bean color represents a type of food source. You MUST have 20 of each color! You will set your timer for 1 minute.
1 minute represents the length of the season
During the 1 minute season, you will use your tool (representing your first organism) to pick up as many beans as possible.
At the end of the season, sort your beans and type the number of the bean color in the appropriate box for that season. For example, during Season 1, organism 1 was able to gather 3 black beans, 4, pink beans, and 5 white beans.
Repeat this process for the second organism for Season 1; and then start over and repeat the process again for both organisms for Season 2.
At the end of 4 minutes you should have all 6 boxes filled out, in addition to the names of your two organisms.
Season #1
Season #2
#Black
#Pink
#White
#Black
#Pink
#White
Organism 1 Name:
Organism 2 Name:
Materials List: What material did you use? Beans? What did you use to represent your ecosystem?
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_________________________________________GRAPH_______________________________________
Which type of data have you collected (discrete or continuous)?
Discrete data: data that can be put into categories
Continuous data: data set in which every point on the line is meaningful
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How do you know? ______________________________________________________________________________________________________________________________________________________________________
You will create a bar graph below.
Be sure to label your axes based on the independent variable (x axis) and the dependent variable (y axis).
Y-axis label:
X-axis label:
_____________________________________DISCUSSION_________________________________________
Take a look at the data in your chart and the table on Slide 14 of the Portfolio presentation that includes information on what each organism needs to survive for the season.
Which one of your organisms survived Season 1?
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Why?
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Which one of your organisms survived Season 2?
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Why?
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Consider the tools you used to gather the resources. How did that impact each organisms’ ability to effectively get food? (You should have at least 2 sentences for this answer since you have two organisms.
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What could be changed to make it better and why?
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