What happens to food after an animal eats it? Choose all the correct answers.
Ecosystem Model
Use the picture below to answer the questions
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Question 4
4.
What 2 things happen to the grass molecules once they are eaten by the zebra?
Sentence starter: The grass molecules ___________________
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Question 5
5.
What 2 things happen to the zebra molecules once they are eaten by the cheetah?
Sentence starter: The zebra molecules ___________________
Where do food molecules in an ecosystem come from?
Food Chain
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Question 6
6.
What do the arrows represent in this model? Use the words direction and food matter (molecules) in your answer. Read page 14 to help you answer this question.
Sentence starter: The arrows represent ____________________
Food Web
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Question 7
7.
What does a food web show? Read page 16 to help you answer this question.
Sentence starter: A food web shows ____________________
Use the food web to answer questions 8
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Question 8
8.
Start with the algae and follow the arrows up to the alligator. Use the food web to fill in the food chain below.
Draggable item
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Corresponding Item
frog
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8.1
raccoon
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8.2
mosquito
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8.3
Use the food web to answer questions 9
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Question 9
9.
Start with the algae again, but this time, find a differentway up to the alligator. What eats what in this ecosystem?
Draggable item
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Corresponding Item
mosquito
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9.1
grass carp
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9.2
heron
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9.3
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Question 10
10.
Where does the alligator get its food molecules?
Sentence starter: The alligator gets food molecules from _____________________
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Question 11
11.
What are two organisms (living things) in the picture to the right? What is something that is NOT an organism (nonliving)?
Sentence starter: Two organisms are the ___________________ and the ___________________. ___________________ is not an organism.
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Question 12
12.
The cards describe the relationships between different organisms in the food web.
-Use the relationships AND the scribble tool to draw arrows showing how matter moves through the ecosystem.
-Your arrow should point in the direction that matter moves.
-Let's do the raccoon together as an example.
Each set of cubes represents the body matter of the organism.
Watch the video, then answer the questions below.
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Question 13
13.
The cubes for represent food/body matter (molecules) for each organism (living thing)
What was happening to the molecules in the ecosystem as the cubes (the matter) were getting passed from one organism to the next?
The Food Web Model can help us think about how matter flows when something in the ecosystem changes.
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Question 14
14.
What do you think would happen to your food web if there were no carp or frogs?
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Question 15
15.
What do you think would happen to your food web if there were no plants or algae?
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Question 16
16.
Do you have any new ideas about where food molecules in an ecosystem come from, based on the Food Web Model?
