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36127 Topic: SCI 207 Our Dependence upon the Environment
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Number of Pages: 1 (Double Spaced)
Number of sources: 2
Writing Style: APA
Type of document: Essay
Academic Level:Undergraduate
NCategory: Environmental Issues
Language Style: English (U.S.)
Order Instructions: Attached
Week 4 – Assignment 1
Greenhouse Gases and Sea Level Rise Laboratory
[WLO: 3] [CLOs: 1, 3, 5]
This lab enables you to create models of sea level rise resulting from melting of sea ice and glacier ice and examine the effects of this potential consequence of climate change.
The Process:
Take the required photos and complete all parts of the assignment (calculations, data tables, etc.). On the “Lab Worksheet,” answer all of the questions in the “Lab Questions” section. Finally, transfer all of your answers and visual elements from the “Lab Worksheet” into the “Lab Report.” You will submit both the “Lab Report” and the “Lab Worksheet” through Waypoint.
The Assignment:
Make sure to complete all of the following items before submission:
Read the Greenhouse Gases and Sea Level Rise Investigation ManualPreview the document and review The Scientific Method (Links to an external site.)Links to an external site.presentation video.
Complete Activities 1 and 2 using materials in your kit, augmented by additional materials that you will supply. Photograph each activity following these instructions:
When taking lab photos, you need to include in each image a strip of paper with your name and the date clearly written on it.
Activity 2, Step 12 will require you to make a line graph. Should you desire further guidance on how to construct a graph, it is recommended that you review the Introduction to GraphingPreview the document lab manual. (You are not expected to complete any of the activities in this manual.)
Complete all parts of the Week 4 Lab WorksheetPreview the document and answer all of the questions in the “Lab Questions” section.
Transfer your responses to the lab questions and data tables and your photos from the “Lab Worksheet” into the “Lab Report” by downloading the Lab Report TemplatePreview the document.
Submit your completed “Lab Report” and “Lab Worksheet” through Waypoint.
Carefully review the Grading Rubric (Links to an external site.)Links to an external site. for the criteria that will be used to evaluate your assignment.
ENVIRONMENTAL SCIENCE
GREENHOUSE GASES AND SEA LEVEL RISE
Overview
In this lab, students will carry out several activities aimed at
demonstrating consequences of anthropogenic carbon emissions,
climate change, and sea level rise. To do this, students will first
create a landform model based on a contour map. They will create
models of sea level rise resulting from melting of sea ice and
glacier ice and examine the effects of this potential consequence
of climate change. Students will critically examine the model
systems they used in the experiments.
Outcomes
• Explain the causes of increased carbon emissions and their likely
effect on global climate.
• Discuss positive and negative climate feedback.
• Distinguish between glacial ice melt and oceanic ice melt.
• Construct a three-dimensional model from a two-dimensional
contour map.
• Evaluate and improve a model system.
Time Requirements
Preparation:
Part 1……………………………………………………………….. 5 minutes,
then let sit for 24 hours before starting Activity 1
Part 2 ……………………………………………………………………2 hours
Activity 1: Sea Ice and Sea Level Rise ……………………………..1 hour
Activity 2: Glacier Ice and Sea Level Rise…………………….2.5 hours
2 Carolina Distance Learning
Key
Personal protective
equipment
(PPE)
goggles gloves apron
follow
link to
video
photograph
results and
submit
stopwatch
required
warning corrosion flammable toxic environment health hazard
Made ADA compliant by
NetCentric Technologies using
the CommonLook® software
Table of Contents
2 Overview
2 Outcomes
2 Time Requirements
3 Background
10 Materials
10 Safety
11 Preparation
13 Activity 1
14 Activity 2
15 Submission
15 Disposal and Cleanup
16 Lab Worksheet
18 Lab Questions
Background
For the last 30 years, controversy has
surrounded the ideas of global warming/climate
change. However, the scientific concepts behind
the theory are not new. In the 1820s, Joseph
Fourier was the first to recognize that, given
the earth’s size and distance from the sun,
the planet’s surface temperature should be
considerably cooler than it was. He proposed
several mechanisms to explain why the earth
was warmer than his calculations predicted,
one of which was that the earth’s atmosphere
might act as an insulator. Forty years later,
John Tyndall demonstrated that different
gases have different capacities to absorb
infrared radiation, most notably methane (CH4
),
carbon dioxide (CO2
), and water vapor (H2
O),
all of which are present in the atmosphere. In
1896, Svante Arrhenius developed the first
mathematical model of the effect of increased
CO2
levels on temperature. His model predicted
that a doubling of the amount of CO2
in the
atmosphere would produce a 5–6 °C increase
in temperature globally. Based on the level of
CO2
production in the late 19th century, he
predicted that this change would take place
over thousands of years, if at all. Arrhenius used
Arvid Högbom’s calculations of industrial CO2
emissions in his equations. Högbom thought
that the excess CO2
would be absorbed by the
ocean; others believed that the effect of CO2
was insignificant next to the much larger effect
of water vapor.
It was not until the late 1950s, when the CO2
absorption capacity of the ocean was better
understood and significant increases in CO2
levels (a 10% increase from the 1850s to the
1950s) were being observed by G. S. Callendar,
that Arrhenius’s calculations received renewed
attention.
The Atmosphere
Weather is the condition of the atmosphere in a
given location at a specific time. Climate is the
prevailing weather pattern over a longer period
of time (decades or centuries).
The atmosphere is a thin shell (~100 km) of
gases that envelops the earth. It is made up
principally of nitrogen (78%), oxygen (21%),
and argon (0.9%). Trace gases include methane
(CH4
), ozone (O3
), carbon dioxide (CO2
), carbon
