7
Science
Quarter 4 – Module 1:
Geographic Coordinate System
Science – Grade 7
Quarter 4 – Module 1: Geographic Coordinate System
First Edition, 2021
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Science
Quarter 4 – Module 1:
Geographic Coordinate System
Introductory Message
For the facilitator:
As a facilitator, you are expected to orient the learners on how to
use this module. You also need to keep track of the learners' progress
while allowing them to manage their own learning at home.
Furthermore, you are expected to encourage and assist the learners as
they do the tasks included in the module.
For the learner:
As a learner, you must learn to become responsible of your own
learning. Take time to read, understand, and perform the different
activities in the module.
As you go through the different activities of this module be
reminded of the following:
1. Use the module with care. Do not put unnecessary mark/s on any
part of the module. Use a separate sheet of paper in answering the
exercises.
2. Don’t forget to answer Let Us Try before moving on to the other
activities.
3. Read the instructions carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking
your answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are done.
If you encounter any difficulty in answering the tasks in this
module, do not hesitate to consult your teacher or facilitator. Always
bear in mind that you are not alone. We hope that through this material,
you will experience meaningful learning and gain deep understanding
of the relevant competencies. You can do it!
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Let Us Learn
A wonderful day to you little scientist! This module was written with you in
mind. It is here to help you “Demonstrate how places on Earth maybe
located using a coordinate system”.
Specifically, you are expected to:
• Identify the reference lines on the globe.
• Describe the location of a place using latitude and longitude.
• Locate positions on Earth using a coordinate system.
Let Us Try!
Read the questions carefully. Choose the best answer and write it on a
separate sheet of paper.
1.
What reference lines on the globe are written in Horizontal and are used
to determine the North and South directions of a specified location?
A. Equator
B. Longitude
2.
C. Latitude
D. Prime Meridian
What reference lines on the globe are written in Vertical and are used
to determine the East and West directions of a specified location?
A. Equator
B. Longitude
3.
C. Latitude
D. Prime Meridian
The starting point of the longitude and is measured in zero degree is
called _______.
A.
B.
C.
D.
Equator
Prime Meridian
Tropic of Cancer
Tropic of Capricorn
1
For item no. 4, study the image on the right.
4. What is the latitude of the North
Pole?
A.
0 degree
B. 30 degrees North
C. 60 degrees North
D. 90 degrees North
5.
Which of the following is TRUE with regards to areas that are between
the Arctic Circle and the Tropic of Cancer?
A.
B.
C.
D.
The Temperature is warm all year round.
They only experience wet and dry season.
They experience four seasons – Summer, Spring, Winter, and Fall.
They have to deal with frequent temperatures not exceeding 10
degrees Celsius.
Let Us Study
After reading the story, study the lesson and answer the corresponding guide
questions.
“Countries of Shapes”
Jack was a young boy who wished
to travel around the world along
with his parents (while hoping the
Covid19 pandemic ends in the
future). He shared their planned
destinations through a phone call
to his dear friends, Oliver and
Ana.
As Jack was explaining the
countries they wish to visit, both
Oliver and Ana were finding a
hard time locating them on a globe, as they were also interested to know the
locations of these countries.
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Jack helped them by giving them descriptions such as “…the place is just
below the country with a shape of a rabbit” and “the next country is similar to
the shape of a seahorse”.
While Oliver was being puzzled by the descriptions given by Jack, Ana was
smiling thinking how funny the descriptions were.
Oliver wondered if there is another way for Jack to give him the exact location
of the country, an easier way to locate them on a globe.
What suggestion would you like to give them in order to locate the position of
the country using the globe?
Do you think there is a much specific way to locate the position other than
describing their shapes?
The Reference Lines of the Globe
Using the online maps to help Ana and Oliver locate the countries as
described by Jack is a good idea. However, you can also use the globe model
or even the world map especially when you have no access to the internet.
If you have seen a globe before, you probably noticed that there are lines or
grids in it. These grids are not designs but are used to specify directions that
can be used to locate positions on Earth.
The imaginary vertical lines on the globe
are called Longitudes and are used to
specify the East and West directions.
These lines run from pole to pole of the
globe and are sometimes called the
Meridians. They are measured in
degrees and has a starting point of zero
degree called the Prime Meridian.
To the right of the Prime Meridian, the
longitudes can be written as 15° E (15
degrees East), 30° E (30 degrees East),
and so on. Towards the left side of the
Prime Meridian, the longitudes can be
written as 15° W (15 degrees West), 30°
W (30 degrees west), and so on.
3
“The image above shows the Longitudes
of the Globe”
Guide Questions
Q1. Using the image on the right,
what continent touches the
longitude of 30 degrees East?
______________________________
______________________________
Q2. How about the 60 degrees
West?
______________________________
______________________________
The imaginary horizontal lines on the globe are called Latitudes which
specify the North and South directions of the globe. Latitudes can also tell
us how far the location is from its starting point measured in degrees. This
starting point of the latitude is called the Equator which has a measure of
zero degree. Equator is also located at the center between the north and
south pole.
For example, using a globe or the world map, the latitude of the south pole
is 90 degrees South (90° S) .
“The image above shows the Latitudes of the Globe”
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Guide Questions
Q3. Using the image on the right,
can you identify the latitude of
the North Pole?
______________________________
______________________________
Q4. What continent is touches the
latitude of 30 degrees North
based on the image?
______________________________
______________________________
Another noteworthy information is
that the area between the equator
and the north pole is called the Northern hemisphere while the area
between the equator and the south pole is called the Southern hemisphere.
The lines of latitudes are also known as parallels of latitude and five of them
were given special names (Equator, Tropic of Cancer, Tropic of Capricorn,
Arctic Circle, and Antarctic circle)
These latitude values are written below.
Latitude
0°
23.5 ° N
23.5 ° S
66.5 ° N
66.5 ° S
Name
Equator
Tropic of Cancer
Tropic of Capricorn
Arctic Circle
Antarctic Circle
Countries located in the equator often experience hot climate with little
seasonal variation. Philippines is located near this equator. Places located in
the Tropic of Capricorn and Cancer experience tropical climate with annual
average temperature above 18 degrees Celsius. Countries in the Arctic and
Antarctic Circle have to deal with cold temperature not exceeding 10 degrees
Celsius. Places between the Arctic circle and tropic of cancer is called the
northern temperate zone while the places between Antarctic circle and tropic
5
Let Us Practice
Using the data table on the right, draw
the lines for each special latitude. Use
the globe below to draw your answers.
Right the name of the latitude just
beside your drawn line. Copy the
drawing on a separate sheet of paper.
Latitude
Name
66.5 ° N
Arctic Circle
23.5 ° N
Tropic of Cancer
0°
Equator
23.5 ° S
Tropic of Capricorn
The drawing for the first special
latitude is already done for you.
66.5 ° S
Antarctic Circle
Arctic Circle
Places between the Arctic circle and tropic of cancer is called the northern
temperate zone while the places between Antarctic circle and tropic of
Capricorn is called southern temperate zone.
Both the Northern and Southern temperate zone experience the four seasons
which are the spring, summer, fall, and winter.
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Let Us Practice More
PART 1
Using the world map below, identify what continents falls under the given
coordinates. Write your answers on a separate sheet of paper.
You can use the first example as your guide.
90°N
75°N
60°N
45°N
30°N
15°N
0°
15°S
30°S
45°S
60°S
75°S
90°S
180°W 150°W 120°W 90°W
Continent
1. Europe
2.
3.
4.
5.
6.
60°W
30°W
0°
30°E
Latitude
55° N
55° N
35° N
10° S
10° S
90° S
60°E
90°E
120°E
150°E
180°E
Longitude
15° E
105° W
100° E
55° W
35° E
0°
Note: values are rounded up to whole numbers that are multiples of five
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Part II
Using the map below, let us
describe the position of the
Philippines.
Answer
the
corresponding questions on
a separate sheet of paper.
1. What is the name of the sea
found on the west of the
Philippines?
30° N
N
CHINA
INDIA
TAIPEI
20° N
E
W
MYANMAR
S
PHILIPPINE SEA
SOUTH
CHINA SEA
10° N
CELEBES
SEA
BORNEO
0°
INDONESIA
2. What is the name of the sea
found on east of the 10° S
Philippines?
NEW GUINEA
INDIAN OCEAN
AUSTRALIA
3. What land mass can be
found with the coordinates of
25 degrees north and 121
degrees East?
100° E
110° E
120° E
130° E
140° E
There are two ways to describe the location of place, using (1) Latitude and
Longitude and by (2) identifying the surrounding land mass and bodies of
water.
The Latitude specifies the North and South directions while the Longitude
specifies and East and West directions.
When locating the position of a place, Latitude is first determined and then
followed by the Longitude.
Oliver and Ana can now locate the position of the place which Jack wishes to
travel around the world. Jack no longer needs to describe the shapes of the
country but give their coordinates for Ana and Oliver to locate.
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Let Us Remember
•
•
•
•
•
Latitude and Longitude are reference lines on the globe that can be
used to locate specific locations on Earth.
Latitudes are the horizontal lines on the globe used to specify the
North and South directions.
The starting point of the Longitude is called the Prime Meridian and
is measured in zero degree.
The starting point of the Latitude is the Equator and is also
measured in zero degrees.
The five special latitudes include the equator, Tropic of Cancer,
Tropic of Capricorn, Arctic Circle, and Antarctic Circle.
Let Us Assess
Read the questions carefully. Choose the best answer and write it on a
separate sheet of paper.
1.
The Philippines is located nearest to which special latitude line?
A. Equator
B. Prime Meridian
2.
C. Arctic Circle
D. Antarctic Circle
Which of the following statements below is considered TRUE with
regards to the climate in Northern and Southern temperate zones?
A.
B.
C.
D.
They
They
They
They
fall.
only have wet and dry seasons.
experience the cold temperature not more than 10° C.
experience hot climate with little seasonal variation.
experience the four seasons -spring, summer, winter, and
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For questions 3 to 6, Use the map below as your guide.
3.
What continent falls under the coordinates of 55° N and 105° W?
A.
B.
C.
D.
4.
What continent falls under the coordinates of 55° N and 100° E?
A.
B.
C.
D.
5.
Asia
Antarctica
North America
South America
What continent falls under the coordinates of 10° S and 55° W?
A.
B.
C.
D.
6.
Asia
Antarctica
North America
South America
Asia
Antarctica
North America
South America
What continent falls under the latitude of 90 degrees South and zerodegree longitude?
A.
B.
C.
D.
Asia
Antarctica
North America
South America
10
7.
The starting point of the longitude and is measured in zero degree is
called _______.
A.
B.
C.
D.
8.
Tropic of Capricorn
Tropic of Cancer
Primer Meridian
Equator
What reference lines on the globe are written in Horizontal and are used
to determine the North and South directions of a specified location?
A. Equator
B. Longitude
9.
C. Latitude
D. Prime Meridian
What reference lines on the globe are written in Vertical and are used
to determine the East and West directions of a specified location?
A. Equator
B. Longitude
C. Latitude
D. Prime Meridian
10. The starting point of the latitude and is measured in zero degree is
called _______.
A.
B.
C.
D.
Equator
Prime Meridian
Tropic of Cancer
Tropic of Capricorn
For item no. 11, study the image on the right.
11. What is the latitude of the North
Pole?
A.
0 degree
B. 30 degrees North
C. 60 degrees North
D. 90 degrees North
11
12. Which of the following statements below is considered TRUE with
regards to the climate in Arctic and Antarctic Circle?
A.
B.
C.
D.
They
They
They
They
fall.
only have wet and dry seasons.
experience the cold temperature not more than 10° C.
experience hot climate with little seasonal variation.
experience the four seasons -spring, summer, winter, and
13. Which of the following is TRUE with regards to Latitudes?
A.
B.
C.
D.
They specify the East and West directions of the globe.
They specify the North and South directions of the globe.
They are the imaginary vertical lines that run from north pole to
south pole.
They have the reference line measured in zero-degree called the
Prime Meridian.
14. Which of the following is TRUE with regards to Longitudes?
A.
B.
C.
D.
They
They
They
They
are the imaginary horizontal lines written in the globe.
specify the North and South directions of the globe.
specify the East and West directions of the globe.
have the reference line called the Equator.
For item no. 15, refer to the image on the right.
15. What continents touches the
latitude of 30 degrees North?
A. Asia and Europe
B. North America and Africa
C. North and South America
D. North Pole and South Pole
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Let Us Enhance
Arrange the scrambled words to form the correct terms. The clue will help
you to arrange these letters.
1. A
D
T
L
E
I
U
T
Answer: ___________________
Clue: The imaginary line on the globe that is used to specify
the North and South directions.
2. D
T
G
U
N
I
O
E
L
Answer: __________________
Clue: The imaginary line on the globe that is used to specify
the East and West directions
3. Q
T
U
R
A
E
O
Answer: __________________
Clue: The reference point of latitude measured in zero degree.
4. R
E
P
M
N
I
R
D
E
A
I
I
M
Answer: __________________
Clue: The reference point of longitude measured in zero
degree.
5. E
E
T
M
R
P
T
A
Answer: __________________
E
E
Z
N
O
N
Clue: Area in the globe that experience the four seasons such
as between the tropic of cancer and Arctic Circle.
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Let Us Reflect
When travelling by land, there are structures or land marks
such as monuments and buildings that can help us to
familiarize the route of location that we are heading. However,
this is much difficult when traveling in a vast ocean such as
how sailors travel from country to country with their ships.
Familiarization of this reference lines is an advantage to sailors
so they do not get lost or end up in unknown places.
What do you think are other important application of these
reference lines that we have just discussed? Write your
answer on a separate sheet of paper. Be sure to be guided by
the rubrics for scoring.
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
Criteria
3
2
1
0
*Rubric adapted from a module of Department of Education
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Answer Key
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References
Britannica.com. 2021. Latitude and Longitude . January 6.
Accessed
January
17,
2021.
https://www.britannica.com/science/latitude.
Britannica.com. 2021. Longitude. Accessed January 17, 2021.
https://www.britannica.com/science/longitude.
Dempsey, Caitlin. 2014. Latitude and Longitude . August 25.
Accessed
January
17,
2021.
https://www.ge.
ographyrealm.com/latitude-longitude/.
Department of Education. Science 7 Learner's Material. PDF file.
n.d. https://www.slideshare.net/lhoralight/science-q3-q4
Earth-info.nga.mil. n.d. Grid Information . Accessed January 17,
2021.
https://earthinfo.nga.mil/GandG/coordsys/grids/grid1.html.
Gsp.humboldt.edu. 2018. Latitude and Longitude. Accessed
January
17,
2021.
http://gsp.humboldt.edu/OLM/Lessons/GIS/01%20Sph
ericalCoordinates/Latitude_and_Longitude.html#:~:text=B
oth%20longitude%20and%20latitude%20are,to%20the%2
0south%20are%20negative).
Nationalgeographic.org. 2021. Equator. Accessed January 17,
2021.
https://www.nationalgeographic.org/encyclopedia/equat
or/#:~:text=Even%20during%20the%20rest%20of,season
%20creates%20tropical%20rain%20forests.
Nationsonline.org. 2021.
Map of Southeast Asia. Accessed
January
24,
2021.
https://www.nationsonline.org/onewworld/map_of_south
east_asia.htm.
Nationalgeographic.org. n.d. Navigation. Accessed January 17,
2021.
https://www.nationalgeographic.org/encyclopedia/naviga
tion/.
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E. Quirino Avenue, Davao City
Telephone: (082) 227 4762
Email Address: lrms.davaocity@deped.gov.ph