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A convergent boundary is formed when two plates slowly move together. At this boundary, the leading
edge of one plate is bent downward, sliding beneath the second plate. This process is called subduction,
and the convergent boundaries are called subduction zones. The surface expression produced by one
plate sliding below another plate is an ocean trench.9/28/2020
Apex Learning – Dry Lab
2.1.4 Lab: Modeling a Plate Boundary
Earth Science Sem 2
Points Possible: 50
Name:
Date:
Dry Lab
Charlie MBA
If you do not have access to a laboratory, use this dry lab data to complete the lab activity. Make sure
you understand the lab procedure so you can interpret the data provided.
This dry lab accompanies the “Modeling a Plate Boundary Lab” on page 79 of your Prentice Hall Earth
Science Lab Manual.
Pre-Lab Discussion (pp. 79-80)
Answer questions 1 – 5.
Procedure (pp. 80-82)
1. Look at the map on Resource 3 in the DataBank. Examine the convergence of the Paciﬁc tectonic
plate and the North American tectonic plate, south of the Aleutian Arc of volcanic islands in the
northern Paciﬁc Ocean.
2. Look at the diagram on page 80 to help you understand how the edges of the Paciﬁc plate and the
North American plate converge.
3. Look at the Data Table on page 81. This Data Table shows the Depths of Foci and Latitudes of
earthquakes occurring in the Aleutian Islands. These earthquakes all occurred near the 180° W
longitude. Examine the table. Do you see any patterns in the data?
Analysis and Conclusions (pp. 82-84)
Figure 1
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Figure 1 shows a graph of location and depth of earthquakes, based upon the information in the
Data Table on page 81. The line is a line of best ﬁt that comes as close as possible to each of the
data points. Use Figure 1 to answer the following questions.
1. Using Graphs
What is the relationship between the depths of earthquake foci and latitude?
2. Analyzing Data
How does the graph show that the boundary between the Paciﬁc plate and the North American
plate is a convergent boundary?
3. Applying Concepts
The Aleutian trench is located where the two tectonic plates meet at the surface of the
lithosphere. Use the graph above to determine the approximate latitude of the Aleutian trench at
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4. Using Graphs
Calculate the slope of the graph to ﬁgure out how quickly the convergent boundary descends as
latitude increases.
5. Calculating
A change in latitude of 1 degree corresponds to an approximate 111 km distance along a northsouth line. Use this information along with your answer to question 4 to determine how far the
convergent boundary descends as it moves 1 km northward. Show all calculations.
6. Using Models
The triangle below shows a side view of the convergent boundary with the correct scale
relationship between the depth and the horizontal distance. The angle at which the subducted
plate descends beneath the upper plate is 52° and is known as the subduction angle.
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7. Calculating
Imagine there is a volcanic island arc on the surface of the lithosphere above the area where the
descending plate has a depth of 100 km. Approximately how far north of this trench are the
islands located? Show all calculations.
8. Evaluating and Revising
Are all of the data points plotted on the graph close to the line of best ﬁt? Provide explanations for
why they are or are not.
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9. Applying Concepts
Is the year in which an earthquake occurred an important variable in this investigation? Why or
why not?
From Prentice Hall Earth Science Lab Manual Copyright © 2006 by Pearson Education, Inc. or its afﬁliate(s). Used by
Copyright © 2018 Apex Learning Inc. Use of this material is subject to Apex Learning’s Terms of Use. Any unauthorized copying, reuse, or redistribution
is prohibited. Apex Learning ® and the Apex Learning Logo are registered trademarks of Apex Learning Inc.
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Apex Learning – Dry Lab
3.1.3 Lab: Mineral Identiﬁcation
Earth Science Sem 2
Points Possible: 50
Name:
Date:
Dry Lab
Charlie MBA
If you do not have access to a laboratory, use this dry lab data to complete the lab activity. Make sure
you understand the lab procedure so you can interpret the data provided.
This dry lab accompanies the “Mineral Identiﬁcation” lab on page 165 of your Prentice Hall Earth
Science Lab Manual.
Procedure (p. 165-167)
Use the data and pictures on page 2 of this activity to record observations in the data table in your
lab manual. You can leave the “Density” columns m, V1, and V2 blank, but you should ﬁll in the
“Density” column d.
Analysis and Conclusions (pp. 167)
Answer questions 1 – 4.
From Prentice Hall Earth Science Lab Manual Copyright © 2006 by Pearson Education, Inc. or its afﬁliate(s). Used by
Copyright © 2018 Apex Learning Inc. Use of this material is subject to Apex Learning’s Terms of Use. Any unauthorized copying, reuse, or redistribution
is prohibited. Apex Learning ® and the Apex Learning Logo are registered trademarks of Apex Learning Inc.
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Apex Learning – Journal
5.1.3 Journal: Bigfoot
Earth Science Sem 2
Points Possible: 15
Name:
Date:
Journal
Charlie MBA
Answer each of the following questions clearly and thoughtfully.
1. Complete the chart below using your household’s typical daily use of energy-consuming
appliances and home electronics such as lamps, television, toaster, microwave oven, washing
machine and so on. (3 points)
Find the wattage of the product. There are three ways to ﬁnd the wattage a product uses:
i. Find the wattage written on the bottom or back of the appliance.
ii. Find the voltage and electrical current draw (in amperes) written on the device or listed in
the owner’s manual. Then you use the formula Watts = Amps x Volts to calculate the
wattage for the appliance.
iii. Find the wattage for your speciﬁc model of an appliance or electronic device by searching
online for product details.
In the daily usage column, write down the number of hours your household uses each appliance
or electronic device each day. (If you have more than one of certain appliances or devices,
indicate how many and calculate accordingly.)
In the weekly usage column, multiply the daily usage by 7.
Find the weekly energy consumption in kWh, using the formula: (Wattage × Hours used per week)
÷ 1000 = Weekly Kilowatt-hour (kWh) consumption
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Appliance Wattage
(W)
Apex Learning – Journal
Daily usage
(hours)
Weekly usage
(hours)
Weekly energy consumption in
kWh
The average U.S. household consumed 11,320 kilowatthours (kWh) of electricity in 2009, of which
the largest portion (7,526 kWh or 145 kWh per week) was for appliances, electronics, lighting, and
miscellaneous uses.
2. An ecological footprint measures human demands on the environment.
Does your family use more or less energy than the national average? (3 points)
3. What are three things you could do to reduce your energy consumption? (3 points)
4. Use your numbers from the table to calculate the amount of energy you could save if you
implemented one of your energy conservation ideas over an entire year. How much energy could you
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save? (3 points)
5. What are some ways you could convince your household to start conserving energy with you? (3
points)
Copyright © 2018 Apex Learning Inc. Use of this material is subject to Apex Learning’s Terms of Use. Any unauthorized copying, reuse, or redistribution
is prohibited. Apex Learning ® and the Apex Learning Logo are registered trademarks of Apex Learning Inc.
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Apex Learning – Practice Assignment
5.3.3 Practice: Environmental Journalism
Earth Science Sem 2
Points Possible: 50
Practice
Charlie MBA
Name:
Date:
Research an environmental issue (such as the Kyoto Treaty, smog, or another topic discussed with your
instructor) and write a feature article about the issue.
The article should be between 375 and 450 words long.
It should describe the problem.
It should explain what’s currently being done (if anything) to solve the problem.
It should contain current and relevant statistics and quotations.
.
Excellent
(41 – 50 points)
Good
(31 – 40 points)
Fair
(21 – 30 points)
Needs work
(20 and fewer
points)
Angle and
purpose
15 points maximum:
The purpose of the
article is clear. The
reader is left with a
solid understanding
of the topic.
12 points maximum:
The purpose of the
article is mostly
clear. The reader is
left with a pretty clear
understanding of the
topic.
9 points maximum:
The purpose of the
article is not quite
doesn’t get a solid
understanding of the
topic.
6 points
maximum: The
article does not
establish a clear
purpose.
Research
and
sources
15 points maximum:
At least ﬁve sources
are used and cited
throughout.
12 points maximum:
Three to ﬁve sources
are used and cited.
9 points maximum:
Only one or two
sources are used
and may not be
cited accurately.
6 points
maximum: It
appears that no
sources were
consulted.
Interest
10 points maximum:
The article contains
facts, ﬁgures, and
word choices that
make it
exceptionally
interesting to
8 points maximum:
The article contains
facts, ﬁgures, and
word choices that
make it fairly
interesting to
6 points maximum:
The article contains
some facts or
ﬁgures but is only
marginally
4 points
maximum: The
article does not
contain facts,
ﬁgures, or word
choices that make
it interesting to
Writing
10 points maximum: 8 points maximum:
mechanics There are no spelling There are very few
or grammar errors.
spelling or grammar
errors.
6 points maximum:
There are various
spelling and
grammar errors
throughout.
4 points
maximum: There
are a lot of
spelling or
grammar errors.
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Apex Learning – Practice Assignment
Copyright © 2018 Apex Learning Inc. Use of this material is subject to Apex Learning’s Terms of Use. Any unauthorized copying, reuse, or redistribution
is prohibited. Apex Learning ® and the Apex Learning Logo are registered trademarks of Apex Learning Inc.
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Apex Learning – Practice Assignment
1.3.2 Practice: Chronic Tectonics
Earth Science Sem 2
Points Possible: 50
Name:
Date:
Practice
Charlie MBA
Answer the following questions thoroughly.
1. Draw a diagram of Earth that labels its mechanical layers on one side and its composition layers
on the other side. (7 points)
2. Fill in the table with information about the different types of boundaries. (8 points)
Type
Where are they
usually located?
Force (tension,
shearing, and so on)
Creates or
destroys crust?
Slab-push or
slab-pull?
Convergent
Divergent
3. There are alternate explanations for the forces behind plate movement.
A. What is “slab-pull”?(4 points)
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B. What is “slab-push”? Give one example of a slab-push structure. (4 points)
C. Which is the stronger force behind plate movement? (2 points)
4. Volcanoes are usually found near subduction zones.
A. Why do you usually ﬁnd volcanoes near subduction zones? (5 points)
B. Draw a diagram to assist your explanation. Make sure you label crust, subduction zone,
magma, volcano, and the direction of plate movement. (5 points)
[id1706757]]
5. What are four pieces of evidence Alfred Wegener used to support his theory of continental drift? (4
points)
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6. Wegener’s theory of continental drift was not accepted by all scientists.
A. What was the main counterargument against Wegener’s evidence? (2 points)
B. What information did Wegener not have that would have strengthened his argument? (3 points)
7. It is thought that all the continents used to be part of one super-continent.
A. How did a super-continent form? (2 points)
B. What caused it to break up after it formed? (4 points)
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Copyright © 2018 Apex Learning Inc. Use of this material is subject to Apex Learning’s Terms of Use. Any unauthorized copying, reuse, or redistribution
is prohibited. Apex Learning ® and the Apex Learning Logo are registered trademarks of Apex Learning Inc.
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