Week 4 Lab Worksheet 1019
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Ashford University - California *
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Course
207
Subject
Geography
Date
May 31, 2024
Type
docx
Pages
7
Uploaded by jasminewiggins4206
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Lab Worksheet
Hypotheses
Activity 1.
The house on the south side will be underwater and the house on the North side will not be touched by any water. The higher elevation of
the house will keep the
water at a minimum level.
Activity 2.
Both houses will be underwater due to water coming down from the top and the water at the bottom will rise as the water flows down.
Observations/Data Tables
Data Table 1. Sea Ice
Time
(min)
Estimated
Depth (m)
Measured Depth (cm)
Observations
0
5 m
½ cm
The water has slightly changed colors.
10
5 m
1.5 cm
All the water is now red but has not risen a whole lot.
20
7 m
2 cm
The water has slightly risen.
30
10 m
2.5 cm
The water seems to be expanding and rising up the first level of the
island.
40
11 m
3 cm
Neither house has been invaded by the water.
50
12 m
3 cm
No change.
melted
15 m
3 cm
The ice has completely melted and the only the first layer of the island has water on it.
ACTIVITY
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Data Table 2. Glacier Ice
Time
(min)
Estimated
Depth (m)
Measured Depth (cm)
Observations
0
6 m
½ cm
The salt water is still separate from the island.
30
9 cm
1 cm
The water is starting to turn colors.
60
12 m
1.2 cm
No Change other than the depth of the water. 90
15 m
2 cm
The lower leveled house is almost completely covered by the water.
120
20 m
3.5 cm
The southern home is completely underwater.
150
20 m
3.5 cm
The northern home is touching the water but it has not gone above the home.
melted
22m 4 cm
The third layer is not completely covered but water is on it in certain spots.
Calculations (paste your line graph from Activity 2, step 12 here)
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Photographs
Activity 1.
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Activity 2.
Lab Questions
Please answer the following entirely in your own words and in complete sentences: Introduction
1.
Background—What is important to know about the topic of this lab? Use at least one outside source (other than course materials) to answer this question. Cite the source using APA format. Answers should be 5–7 sentences in length.
The important thing to know about greenhouse gases and sea-level rise is that greenhouse gases is one of the major causes of sea-level rise. Pollution that we are sometimes unaware of is the reason for environmental destruction. One of the major land marks we have to think about when it comes to sea-level rise is the mountains. “Sea level rise would inundate deltas, coral atoll islands, and other coastal lowlands” (Titus, 2002). Even though the worst effects will be well into the future, engineers, citizens, and government officials should start planning now. 2.
Outcomes—What was the main purpose of this lab?
The main purpose of this lab was to show estimates of how fast sea-levels can rise due to greenhouse gases exposure. Over a two hour and a half span, the island went from being dry to being almost completely covered with water. Imagine what happens in years! The measurement of water depends on the angle and speed of the water flow. Note, in our environment, there will be significantly much more air pollutants and higher sea-levels.
3.
Hypotheses—What were your hypotheses for Activity 1? What were your hypotheses for Activity 2? Identify each hypothesis clearly, and explain your reasoning.
In activity one, I thought that the water would rise and completely cover the southern home. I was wrong. The barriers of the island stopped the water from rising above its barrier. In activity two, I thought the northern and southern home would be completely underwater. Again, I was wrong. The southern home was
completely underwater but the northern home touched then top of the water. I believe the northern home’s higher elevation decreased the height of the water. Also, as water rises, it tends to expand. Materials and Methods
4.
Using your own words
, briefly describe what materials and methods you used in each of the activities. Your answer should be sufficiently detailed so that someone reading it would be able to replicate what you did. Explain any measurements you made. After putting water and food coloring into two medicine cups, I put them in the freezer to freeze overnight. The next day, using an Island template giving to the class by our instructor, I created the same island model out of clay. Placing the clay model template I made inside of a plastic container, I poured a mix of salt water into the container until it reached the second level of the Island. In the first activity, I used one of the ice cubes I made from the previous night to sit on the opposite side of the Island. In the second activity, I used the last ice cube I made and sat it on top of the island. This allowed me to measure sea-level rise from different angles of water flow and gas exposure.
Discussion 5.
Based upon the results of each activity, explain whether you accepted or rejected your hypotheses and why. Based on the results, I rejected my hypothesis of both activities. Now I understand a little better why and how
the northern and southern home was either above or underwater. My hypothesis was merely wild guesses with little thought behind them. I should have taken more time to think critically and scientifically before analyzing my hypothesis. 6.
What important information have you learned from this lab? Use at least one outside source (scholarly for full
credit) to answer this question. Cite the source using APA format. Answers should be 5–7 sentences in length.
From this lab, I have learned that greenhouse gases in the atmosphere causes sea-levels to rise. I also learned that pollution of the air is a major issue in our country. “Greenhouse gases that linger for just a year to a few decades can cause sea-levels to rise for hundreds of years” (Chu, 2017). At this point, even if humans stopped all emissions of gases, such as carbon-monoxide, we have already created so much pollution that sea-levels would probably still rise for years to come. 7.
What challenges did you encounter when doing this lab? Name at least one. Challenges I had with this lab was the anticipation of seeing what would happen. The time intervals were too long because I was so anxious to see the outcomes of both activities. I also had a hard time making sure that the island was created correctly. It took two attempts to get the island done correctly. 8.
How might a scientist create a more realistic physical model to show the effects of global climate change on sea level rise? What factors might be changed?
I think scientists could test a physical place. The place should have components needed such as ice and high level of gas exposure, preferably an island or mountain. Set up a spot to observe and measure the water levels at different intervals just like we did in this lab. After a period of time, days or even years, scientists could create a graph or slide show that shows the increasing levels of water and the substances that caused the rise.
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Literature Cited
9. List the references you used to answer these questions. (Use APA format, and alphabetize by the last name.) Chu, J. 2017. Short-lived Greenhouse Gases Cause Centuries of Sea-level Rise.
Retrieved from:
https://climate.nasa.gov/news/2533/short-lived-greenhouse-gases-cause-
centuries-of-sea-level-rise/
Titus, 2002. Greenhouse Effect, Sea-Level Rise and Land Use.
Land and Use Policy. Volume 7, Issue 2, p.138
Now copy and paste your answers into the Lab Report provided. Include the data tables
and photographs. You may wish to make minor edits to enhance the flow of your resulting
lab report.