7

Science
Quarter 4- Week 1 - Module 1
Locating Places Using
Coordinate System

AIRs - LM
Science7
Quarter 4 – Week 1 - Module 1: Locating Places Using Coordinate System
First Edition, 2021

Copyright © 2021
La Union Schools Division
Region I

All rights reserved. No part of this module may be reproduced in any form
without written permission from the copyright owners.

Development Team of the Module

Author: Edith A. Dela Cruz

Editor: SDO La Union, Learning Resource Quality Assurance Team
Illustrator: Ernesto F. Ramos, Jr., P II

Management Team:

Atty. Donato D. Balderas, Jr.

Schools Division Superintendent

Vivian Luz S. Pagatpatan, Ph.D

Assistant Schools Division Superintendent

German E. Flora, Ph.D, CID Chief

Virgilio C. Boado, Ph.D, EPS in Charge of LRMS

Rominel S. Sobremonte, Ed.D, EPS in Charge of Science

Michael Jason D. Morales, PDO II

Claire P. Toluyen, Librarian II

 Target

Have you ever wondered how google maps work? How when you search for a
location using google maps sometimes it asks for its coordinates? Have you ever
asked what are the horizontal and vertical lines in a map are used for? Coordinate
system is very important in locating places, thus, in this module you will learn about
longitude and latitude, and also how to use them to locate a specific place.

Most Essential Learning Competency

• Demonstrate how places on Earth may be located using a coordinate system

(S7ES-IVa-1)

Subtasks
• Determine locations on a map using coordinate system; and
• Apply skills on grid mapping in locating places on a map.
Pre-Test
Multiple Choice. Read the following questions and write the letter of your answer
on a separate sheet of paper.

1. Which of the following do you need to look at to locate exact places on the
earth? The ____
A. intersecting lines of latitude and longitude
B. lines of longitude only
C. lines of latitude only
D. neighboring area to describe the location

2. Latitude lines on a globe run from ______

A. north to south B. east to west C. north to east D.south to west

3. When measuring the lines of latitude, always begin with the ______, which
represents 0 degrees.
A. prime meridian B. equator C. longitude D. north pole

For numbers 4-6 refer to the map below

Source: https://desktop.arcgis.com/en/arcmap/10.3/guide-books/map-projections/geographic-
coordinatesystem.htm#:~:text=The%20geographic%20coordinate%20system%20consists,or%20south
%20of%20the%20equator.

4. Which of the following is the correct location/coordinates of point C?

A. 600N and 600E B. 600N and 600W
C. 600S and 600E D. 600S and 600W

5. Which of the following is the correct location/coordinates of point B?

A. 600N and 1200E B. 600N and 1200W
C. 600S and 1200E D. 600S and 1200W

6. Which of the following is the correct location/coordinates of point F?

A. 600N and 1200E B. 600S and 1200E
C. 600N and 1200W D. 600S and 1200W
7. On a globe, the Equator is the ______
A. Horizontal, center line B. 30 degree line
C. Vertical, center line D. 180 degree line

8. Which of the following are numbers measured with respect to a system of lines
or some other fixed reference?
A. Coordinate B. Equator
C. Coordinate system D. Prime meridian

9. Which of the following is a way of locating points by labeling them with

numbers called coordinates?
A. Coordinate B. Coordinate system
C. Equator D. Prime meridian

10. Which of the following is the imaginary line circling the Earth halfway between
north and south poles?
A. Coordinate B. Coordinate system
C. Equator D. Prime meridian

11. Which of the following is the great circle on Earth’s surface passing through
the North and South Poles, which is considered 0 degrees longitude?
A. Coordinate B. Equator
C. Coordinate system D. Prime meridian

12. Which of the following is the imaginary lines on a map or globe that measure
distance in degrees north or south of the equator?
A. Longitude B. Latitude
C. Equator D. Prime meridian

13. Imaginary lines on a map or globe that measure distance in degrees east or
west of the prime meridian?
A. Longitude B. Equator
C. Latitude D. Prime meridian

14. Which of the following lines of latitude is the Philippines found?

A. Arctic B. Tropic of Capricorn
C. Antarctic D. Tropic of Cancer

15. Which of the following divides the earth into northern and southern
hemispheres?
A. Longitude C. Latitude
C. Equator D. Prime meridian
 Lesson
Latitude and Longitude
1
Take a look at a map or a globe, observe the vertical and horizontal lines, do
you have an idea on how to use these lines? Or what they are for? These lines are
very important in determining the exact location of a certain place.
In this lesson you will learn how to use latitude and longitude in locating
different places.

Jumpstart
Activity 1
Look at the different colored dots below, identify the coordinates of each dot.
Write your answer on the table provided below the graph. Number 1 is already done
to serve as an example.
9

0
1 2 3 4 5 6 7 8 9

Color of the Dot Coordinates

1. BLUE 8,1
2. RED
3. YELLOW
4. BLACK
5. GREEN
6. ORANGE
 Discover

Latitude and Longitude: Your Global Address

Every location on earth has a global address. Because the address is in

numbers, people can communicate about location no matter what language they
might speak. A global address is given as two numbers called coordinates. The two
numbers are a location's latitude number and its longitude number ("Lat/Long").

Figure 1 Latitude (https://www.britannica.com/science/latitude)

Figure 2 Longitude (https://cdn.britannica.com/06/64906-050-

675D6688/meridians-Facts-Lines-of-Longitude-angles-halves.jpg)
 Latitude Name
00 Equator
23.50N Tropic of
Cancer
23.50S Tropic of
Capricorn
66.50N Arctic
Circle
66.50S Antarctic
Circle

Figure 3 Five lines of latitude

(https://sites.google.com/a/salineschools.org/heritage-media-center/maps---test-
study-guide)
The lines of latitude are also known as parallels of latitude. That is because
the lines of latitude are parallel to the equator and to each other. Five lines of latitude
have special names. Figure 3 above shows the five lines of latitude. The latitude
values have been rounded off to the nearest half-degree.
The countries located in the Tropic of Cancer and Tropic of Capricorn
experience a tropical climate where the annual average temperature is above 18 0C,
Philippines is located in the Tropic of Cancer, hence the reason why we have a
tropical climate.
Between the Tropic of Cancer and the Arctic Circle is the northern temperate
zone; between the Tropic of Capricorn and the Antarctic Circle is the southern
temperate zone. Countries in these zones go through four seasons – winter, spring
summer, and autumn.
Finally, the areas within the Arctic Circle and Antarctic Circle are called the
polar regions or frigid zones. People who choose to live in these areas have to deal
with temperatures that never go above 10°C. It is cold all year round and even during
the summer months, it does not feel like summer at all.
To sum up, the closer the latitude is to the equator, the warmer the climate.
The closer it is to the poles, the colder. Thus, it is clear that there is a relationship
between the latitude of a place and the climate it experiences.

Figure 4 Earth’s Hemispheres

(https://www.worldatlas.com/aatlas/hemispheres.htm)
Figure 4 above shows Earth’s hemispheres, equator divides the Earth into
northern and southern hemispheres, while the prime meridian divides it into western
and eastern hemispheres. All the lines of latitude above the equator are considered
North, while all the lines of latitude below the equator is considered South, hence it
explains why the Tropic of Cancer is at 23.50N while the Tropic of Capricorn is at
23.50S.

Grid Mapping/Coordinate System

Using Latitude and Longitude is different from using a street address. Instead
of having a specific street address, Latitude and Longitude works with a numbered
grid system, like what you see when you look at graph paper. It has horizontal lines
and vertical lines that intersect. A location can be mapped or found on a grid system
simply by giving two numbers which are the location's horizontal and vertical
coordinates; or, to say it another way, the "intersection" where the place is located).

Figure 5 World Map with Latitude and Longitude

(http://www.jsu.edu/dept/geography/mhill/phygeogone/latlngprf.html)

Figure 5 above shows a world map with latitude and longitude. For you to
understand how to use the lines of latitude and longitude, certain points are placed
in the map. Let’s find the coordinates of some of the points indicated, for you to have
a better understanding of the lesson. Look at point C on the map, its coordinates
are 600 N, (it is North due to its location 600 above the equator) and 600E (it is East due
to its location on the Eastern side of the Prime meridian) while point F is at 600S and
1200W.

TERMS TO REMEMBER!
Coordinates – These are numbers measured with respect to a system of lines or
some other fixed reference.
Coordinate system - it is a way of locating points by labeling them with numbers
called coordinates
Equator - The imaginary line circling the Earth halfway between north and south
poles
Latitude - Imaginary lines on a map or globe that measure distance in degrees north
or south of the equator. Latitude lines extend horizontally from east to west on a
globe.
Longitude – Imaginary lines on a map or globe that measure distance in degrees east
or west of the prime meridian. Longitude lines extend vertically, from pole to pole on
a globe.
Prime meridian – The great circle on Earth’s surface passing through the North and
South Poles, which is considered 0 degrees longitude. The prime meridian passes
through Greenwich, England, and is used as a reference point for measuring
longitude east and west

Explore

To intensify your understanding of the topic do the activities below

Activity 1
Given the world map below, identify the coordinates of the given points.
Write your answers on the table provided below the map.

Source: https://www.worldatlas.com/aatlas/hemispheres.htm

POINT LATITUDE LONGITUDE

1. A
2. B
3. C
4. D
5. E
6. F
7. G
8. H
9. I
10. J
 Deepen

Activity 2
Using a red ballpen/marker place dots on the world map to show the
coordinates and location of the five given countries listed on the table below the world
map.

COUNTRY LATITUDE LONGITUDE

1. PHILIPPINES 130N 1220E
2. SOUTH KOREA 400N 1280E
3. CANADA 560N 1060W
4. AUSTRALIA 250S 1060E
5. BRAZIL 140S 520W
 Gauge

Direction: True or False: Read each statement properly. Write T if the statement
is true and write F if the statement is false.

______1. Coordinates are numbers measured with respect to a system of lines or

some other fixed reference
______2. Equator is the imaginary line circling the Earth halfway between north and
south poles
______3. Latitude is the great circle on Earth’s surface passing through the North
and South Poles
______4. Coordinate system is a way of locating points by labeling them with
numbers called coordinates
______5. Longitude lines extend vertically, from pole to pole on a globe.

Multiple Choice. Read the following questions and write the letter of your answer on
a separate sheet of paper.
6. Which of the following do you need to look at to locate exact places on the
earth? The ____
A. intersecting lines of latitude and longitude
B. lines of longitude only
C. lines of latitude only
D. neighboring area to describe the location

7. Latitude lines on a globe run from ______

A. north to south B. east to west C. north to east D.south to west
8. When measuring the lines of latitude, always begin with the ______, which
represents 0 degrees
A. prime meridian B. equator C. longitude D. north pole
For numbers 4-6 refer to the map below

Source: https://desktop.arcgis.com/en/arcmap/10.3/guide-books/map-projections/geographic-
coordinatesystem.htm#:~:text=The%20geographic%20coordinate%20system%20consists,or%20south
%20of%20the%20equator.
9. Which of the following is the correct location/coordinates of point C?
A. 600N and 600E B. 600N and 600W
C. 60 S and 60 E
0 0 D. 600S and 600W

10. Which of the following is the correct location/coordinates of point B?

A. 600N and 1200E B. 600N and 1200W
C. 600S and 1200E D. 600S and 1200W

11. Which of the following is the correct location/coordinates of point F?

A. 600N and 1200E B. 600S and 1200E
C. 600N and 1200W D. 600S and 1200W

12. On a globe, the Equator is the ______

A. Horizontal, center line B. 30 degree line
C. Vertical, center line D. 180 degree line

13. Which of the following are numbers measured with respect to a system of lines
or some other fixed reference?
A. Coordinate B. Equator
C. Coordinate system D. Prime meridian

14. Which of the following is a way of locating points by labeling them with
numbers called coordinates?
A. Coordinate B. Coordinate system
C. Equator D. Prime meridian

15. Which of the following is the imaginary line circling the Earth halfway between
north and south poles?
A. Coordinate B. Coordinate system
C. Equator D. Prime meridian
Pre-Test JUMPSTART Gauge
1. A ACTIVITY 1 1.T
2. B Color of the Dot Coordinates 2.T
3. B 3.F
1. BLUE 8,1
4. A 4.T
2. RED 6,2
5. B 5.T
3. YELLOW 8,4
6. D 6.A
7. A 4. BLACK 2,4
5. GREEN 7,6 7.B
8. A 8.B
9. B 6. ORANGE 4,7
9.A
10. C 10.B
11. D 11.D
12. B 12.A
13. A 13.A
14. D 14.B
15. C 15.C
EXPLORE
ACTIVITY 1
POINT LATITUDE LONGITUDE
1. A 750 N 900W
2. B 600N 1200W
3. C 600N 600E
4. D 150N 450W
5. E 00 1500W
6. F 600S 1200W
7. G 300S 00
8. H 150S 750 E
9. I 450S 1500E
10.J 300N 1800E
Answer Key
References
Science 7 Learner’s Material, First Edition 2017 Alvie J. Asuncion et.al

https://desktop.arcgis.com/en/arcmap/10.3/guide-books/map-
projections/geographic-coordinate-
system.htm#:~:text=The%20geographic%20coordinate%20system%20consists,or%2
0south%20of%20the%20equator.

http://profharwood.x10host.com/GEOG101/Study/LongLat.htm

https://sites.google.com/a/salineschools.org/heritage-media-center/maps---test-
study-guide

https://www.worldatlas.com/aatlas/hemispheres.htm