A. Midpoint Assessment

Part 1: Revising Initial Models

Required

4

How did the lettuce get the food molecules that we then eat?

Lettuce grows in the ground and we eat its leaves.

Explain how lettuce gets its food molecules. Using words add the components and interactions you need to explain what is going on in the model below.

Make sure to include things we can't see with our own eyes but we know are there.
Add in other zoom-ins if you need them.
If needed, add a key to explain your representations.

Use your model from question 1 to answer numbers 2 & 3.

Required

1

The plant itself is a system with inputs and outputs. There are many inputs that lead to food molecules being made. The inputs that are matter is ....

(Choose 2)

Required

1

The plant itself is a system with inputs and outputs. There are many inputs that lead to food molecules being made. The input that is energy is ___________.

(choose one)

Required

1

Explain why the inputs of a plant are not the same as the outputs.

Part 2: A New Scenario

This is an actual headline from a newspaper: Living in a box: Scientist to spend 48 hours in an airtight container with 160 plants to keep him alive.

The scientist survived! And he set up an experiment where he collected data before and during the time he was spending the 48 hours in the container. Throughout the study, the scientist kept the lights on and measured carbon dioxide, oxygen, and humidity (water in the air). Here we will look at three sets of data from this experiment.  

Required

0

Is the carbon dioxide increasing or decreasing when the scientists is in the container without plants?

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0

Is the carbon dioxide increasing or decreasing when the scientists is in the container with the plants?

Required

1

Why was the scientist able to survive in an airtight (closed) space with plants?
Write a claim:

Required

1

What evidence from the graph supports your answers.

Required

1

The plant itself is a system with inputs and outputs. There are many inputs that lead to food molecules being made. The inputs that are matter is ....(Choose 2)

The plant itself is a system with inputs and outputs. There are many inputs that lead to food molecules being made. The input that is energy is ___________.(choose one)

Explain why the inputs of a plant are not the same as the outputs.

Is the carbon dioxide increasing or decreasing when the scientists is in the container without plants?

Is the carbon dioxide increasing or decreasing when the scientists is in the container with the plants?

Why was the scientist able to survive in an airtight (closed) space with plants?Write a claim:

What evidence from the graph supports your answers.

How does your evidence in question 8 support your claim?

The plant itself is a system with inputs and outputs. There are many inputs that lead to food molecules being made. The inputs that are matter is ....

(Choose 2)

The plant itself is a system with inputs and outputs. There are many inputs that lead to food molecules being made. The input that is energy is ___________.

(choose one)

Why was the scientist able to survive in an airtight (closed) space with plants?
Write a claim: