Water and Good Size Cloud
01.01: Water Cycle
Data and Observations Table
Trial Number
Number of Pumps
Observations
1
5
Very faint cloud
10 Starting to see a more visible cloud
15 I see a good size cloud now
2
5 A decent cloud
10 I know see the cloud more
15 A awesome cloud
Analysis:
Reflection Questions
1. Which of your two trials had the best cloud formation? In your own words, explain why.
I believe the one with the rubbing alcohol, because you could see it faster and clearer.
2. Did the cloud appear when you squeezed the bottle, creating high pressure on the air in the bottle, or when you released it, creating low pressure? Explain why.
The cloud appear when I released it because, you need three things, water molecules, cloud condensation nuclei - dust or air pollution, temperature or pressure changes
3. Describe the parts of the hydrologic cycle that took place in your best trial. Use the correct terminology.
It is also known as the water cycle and it continuous movement of water on, above and below the surface of the bottle. It involves the exchange of energy and which then leads to temperature change.
4. In your own words, explain why the cloud went away when you pumped the bottle?
The cloud disappears when you increase the pressure of the air in bottle again because the air is warmed and the tiny liquid water droplets evaporate (change back into water vapor that we can’t see). It’s all about the temperature changes for evaporation/condensation of water
5. As air rises in the atmosphere, do you think is it compressed, or does it expand? (Hint: Does it get warmer or colder as it rises?)
Air becomes cooler when it expands, and warms as it is compressed. Air descending from high altitude warms as it is compressed by the higher atmospheric pressure near Earth’s surface.
01.02: The Atmosphere
Data:
1. What did you observe as the can containing water was heated on the burner?
That the can
Data and Observations Table
Trial Number
Number of Pumps
Observations
1
5
Very faint cloud
10 Starting to see a more visible cloud
15 I see a good size cloud now
2
5 A decent cloud
10 I know see the cloud more
15 A awesome cloud
Analysis:
Reflection Questions
1. Which of your two trials had the best cloud formation? In your own words, explain why.
I believe the one with the rubbing alcohol, because you could see it faster and clearer.
2. Did the cloud appear when you squeezed the bottle, creating high pressure on the air in the bottle, or when you released it, creating low pressure? Explain why.
The cloud appear when I released it because, you need three things, water molecules, cloud condensation nuclei - dust or air pollution, temperature or pressure changes
3. Describe the parts of the hydrologic cycle that took place in your best trial. Use the correct terminology.
It is also known as the water cycle and it continuous movement of water on, above and below the surface of the bottle. It involves the exchange of energy and which then leads to temperature change.
4. In your own words, explain why the cloud went away when you pumped the bottle?
The cloud disappears when you increase the pressure of the air in bottle again because the air is warmed and the tiny liquid water droplets evaporate (change back into water vapor that we can’t see). It’s all about the temperature changes for evaporation/condensation of water
5. As air rises in the atmosphere, do you think is it compressed, or does it expand? (Hint: Does it get warmer or colder as it rises?)
Air becomes cooler when it expands, and warms as it is compressed. Air descending from high altitude warms as it is compressed by the higher atmospheric pressure near Earth’s surface.
01.02: The Atmosphere
Data:
1. What did you observe as the can containing water was heated on the burner?
That the can