Objective: KWBAT make predictions and write initial explanations about the process of condensation.
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Question 1
1.
Why is East Ferris running out of water? Think back to the what we learned in the lessons from chapter 1 about the amount of water in the reservoir.
East Ferris is running out of water because _____________
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Question 2
2.
What is the question Mayor McKnight would like us to figure out?
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Question 3
3.
How do you think drops of water form?
Water drops form _____________
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Question 4
4.
Other than rain, what are times you’ve seen drops of water forming?
Water drops form on _____________
Model A - Cup of water with no ice
Label the outside of the cup on your paper
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Question 5
5.
Before the ice was added... What does the outside of the cup of water look like (Model A)?
The outside of the cup of water looks like _____________
Question 6
6.
Right when the ice was added... What did you observe on the outside of the cup?
On the outside of the cup, I observed _____________
Model B - Cup of water with ice
Label the outside of the cup on your paper
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Question 7
7.
Several minutes after the ice was added… What did you observe on the outside of the cup (Model B)?
On the outside of the cup, I observed _____________
Question 8
8.
Check For Understanding
Why do you think the water drops formed after we added ice to the cups?
I think the water drops formed after the ice was added because _____________
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Question 9
9.
Reflect back to the video. Where do you think the water on the outside of the cup came from?
I think the water on the outside of the cup came from _____________
Time for Demonstration 2!
Last night, I put an empty cup in the freezer.
Take out the empty cup from the freezer and place it for the class to see.
We will make observations in a few minutes.
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Question 10
10.
If I put this empty cup in the freezer for a while and then take it out and observe it for a while, will drops of water appear?
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Question 11
11.
Explain why drops of water will appear or will not appear on the cup from the freezer?
Model C - Cup from freezer with no ice
Label the outside of the cup on your paper
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Question 12
12.
Check For Understanding
I put an empty cup in the freezer and then took it out after a while. Why do you think drops of water appeared on the outside of this empty cup?
The drops of water appeared on the outside of this empty cup because _____________
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Question 13
13.
Check For Understanding
Based on what we observed, do you think the water on the outside of the cup comes directly from the water and ice on the inside of the cup? Why or why not?
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Cup of water with ice
Cup of water without ice
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Question 15
15.
Why is there water drops on the cup with ice in it, but not on the cup without ice in it?
Question 16
16.
Check For Understanding
What temperature does the cup (or any object) need to be for water to form on the outside of it?
Question 17
17.
If I take a can of coca cola from the refrigerator (that has been in the refrigerator overnight) and put it on the table, will water form on the outside of the can? Why or why not?