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Science 10
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** Please note there is a Reading Booklet and PowerPoint on our website www.sailacademy.ca
SCIENCE 10 – SUBSTANTIVE ASSIGNMENT
Total Mark:
/60
INSTRUCTIONS: Your first assignment consists of parts A, B, C, D and E. Read the information for
each part and then complete the associated questions. You may also need to view the Science 10plate tectonics powerpoint to help you understand Continental Drift and to help you answer some
of the questions.
PART A: CONTINENTAL DRIFT THEORY - Read the information that is attached (pgs 506 -510) about
continental drift and then complete the following:
/7 marks
1. What scientist proposed the continental drift theory? [ /1 mk]
2. What name did he give to his proposed “supercontinent”? [
/1 mk]
3. Each of the pieces of evidence below supports continental drift theory. Give a specific example for
each piece of evidence. [
Continental Drift
Evidence
● jigsaw puzzle fit
● matching geological
features and rocks
● matching fossils
● climatic evidence
/4 mks]
Example
4. Despite the evidence he found to support the continent drift theory, the scientific community of his day
thought the idea of moving continents was ridiculous. What crucial question could Wegener NOT
answer that might have changed other scientists’ minds? [ /1 mk]
PART B: MECHANISM FOR CONTINENTAL DRIFT – SEAFLOOR SPREADING - Read the information
that is attached (pgs 510 -513) about seafloor spreading and then complete the following:
/14 marks
1. Each of the findings below was unavailable to Wegener at the time he proposed his theory. These
findings provided evidence to explain how plates move. Give a specific example for each finding or
source of evidence. [ /3 mks]
New Finding/Source of
Example
Evidence
● observations made by
scientists
● ocean rock and sediments
● paleomagnetism
2. Describe the process of sea floor spreading. [ /4 mks] Please use the following key words in your
explanation: magma, less dense, convection currents, spreading ridge
3. Use the diagram of an ocean ridge to match the following descriptions with the corresponding letter.
Note that the alternating shaded regions indicate oceanic rock of normal and reverse polarity. Currently
the Earth is in a period of normal polarity. Some letters will be used more than once.
[ /7 mks]
D
_____ 1. Thickest ocean floor material
_____ 2. Basalt with normal polarity
_____ 3. Rising magma
_____ 4. Oldest ocean floor material
_____ 5. Basalt with reverse polarity
_____ 6. Thinnest ocean floor material
This diagram illustrates
the process that is
occurring at an oceanic
ridge.
7. The ocean floor will be moving from:
[A to B] / [ B to A]. (circle the correct choice)
PART C: VOCABULARY (Continental Drift & Seafloor Spreading) - Match each term with the best
definition. Each definition may be used only once:
/9 marks
TERM
1. _____ tectonic plate
2. _____ paleoglaciation
3. _____ hot spot
4. _____ earthquakes
5. _____ continental drift
theory
6. _____ magnetic reversal
7. _____ volcanoes
8. _____ plate tectonic theory
9. _____ spreading ridge
A.
B.
C.
D.
DEFINITION
the large slabs of rock that from Earth’s surface and move
over
a layer of partly molten rock
the theory that Earth’s surface is broken up into large
plates that move and then rejoin
an opening in Earth’s surface that, when active, spews out
gases, chunks of rock, and melted rock
an area where molten rock rises to Earth’s surface
E. a sudden, ground-shaking release of built-up energy at or
under Earth’s surface
F. the theory that the continents have not always been in
their present locations but have moved over millions of
years
G. a pattern of alternating stripes of different directions of
magnetic polarity in rock on the sea floor
H. the region where magma breaks through Earth’s surface,
continually forcing apart old rock and forming sea floor
I. the extent of ancient glaciers; also the rock markings they
left behind
Part D: Analyse Your Map -
/15 marks
View the Science10-Platetectonics power point. You will need it to answer the questions below.
Use the information from the slides and the Plate Boundary Map provided towards the end of the powerpoint
to help answer the following questions regarding plate boundary locations and their relationship to
earthquakes and volcanoes
1. Looking at the Plate Boundary Maps (slide
30), which two plates converge at the Pacific
Northwest near British Columbia? (1 mark)
a.
b.
2. On Slide 29, what is the relationship
between the location of earthquakes and
the plate boundaries near British
Columbia? (1 mark)
3. Are all plates the same size? (1 mark)
4. Using the Plate Boundary Maps (slide 31),
which plates interact near Japan? (3 marks)
5. Japan is known for experiencing
earthquakes regularly. Slide 32 shows
seismic data for Southeast Asia, there are
so many earthquakes you cannot even see
Japan on the map as it is covered. Why do
you think Japan experiences so many
earthquakes? Give at least 2 reasons. (2
marks)
6.
1..
2.
3.
a.
b.
Looking at the Pacific Rim Seismic Data on
Slide , what body of water does the ring of
fire generally surround? (1 mark)
7.
8. Explain:
a) what causes earthquakes (1 mark)
b) how can the locations of earthquakes
can be used to determine the location
of the plate boundaries. (2 marks)
9. a. How do volcanoes form? (1 mark)
a.
b. Are the majority of volcanoes found in
the Pacific Rim found in the middle of
the plates or on the edges of the
plates? Why? (2 marks)
b.
Part E. Mapping Earthquakes, Volcanoes and Ring of Fire - /15 marks
Task: Using the longitude and latitude co-ordinates provided in the tables, plot the locations of major
earthquakes and volcanoes on your map and draw a line to mark the Ring of Fire.
a) Earthquakes - use the symbol
b) Volcanoes - use the symbol
c) Ring of Fire – draw a line -------------
Longitude
1200 W
1100 E
770 W
880 E
1210 E
700 W
850 W
Latitude
400 N
50 S
40 S
230 N
140 S
300 S
130 N
EARTHQUAKES
Longitude
1250 E
1400 E
1500 W
680 W
1750 E
1210 E
1300 W
(5 marks)
Latitude
230 N
350 N
610 N
470 S
410 S
170 N
550 N
Longitude
1500 W
700 W
1200 W
610 W
1050 W
750 W
1220 W
Latitude
600 N
350 S
450 N
150 N
200 N
00
400 N
VOLCANOES
Longitude
1600 E
1450 E
1200 E
1050 E
700 W
1750 E
1230 E
(5 marks)
Latitude
550 N
400 N
100 S
50 S
300 S
390 S
380 N
F.
CHECKLIST
- complete the checklist
I have completed the following:
PART A
PART B
PART C
PART D
PART E
PART F
I enjoyed learning most about:
In Science 10, I look forward to learning about:
√