Learning Activity Sheet No. 4.1 Learning Activity Sheet No. 4.
1
Subject : Science 7 Subject : Science 7
Type of Activity : Concept Notes and Skills Type of Activity : Concept Notes and Skills
Activity Title: “Where Am I?” Activity Title: “Where Am I?”
Learning Target: Demonstrate how places on Earth may be Learning Target: Demonstrate how places on Earth may be
located using a coordinate system. (S7ES-IVa-1) located using a coordinate system. (S7ES-IVa-1)
References: DepEd Science 7 Learners Material References: DepEd Science 7 Learners Material
irishmendoza.TNHS Learning Activity Sheet irishmendoza.TNHS Learning Activity Sheet
Concepts: Concepts:
Map – representation on a flat surface of the whole Map – representation on a flat surface of the whole
world or a part of an area world or a part of an area
Globe – model of the Earth; a three-dimensional Globe – model of the Earth; a three-dimensional
representation of our planet representation of our planet
Some common features of the representation of the earth: Some common features of the representation of the earth:
Equator – an imaginary line; a center horizontal line that Equator – an imaginary line; a center horizontal line that
divides the northern and southern hemisphere equally divides the northern and southern hemisphere equally
and is designated with 00. and is designated with 00.
Northern Hemisphere – upper portion from the Northern Hemisphere – upper portion from the
equator. equator.
Southern Hemsiphere – lower portion from the Southern Hemsiphere – lower portion from the
equator. equator.
Latitudes – horizontal parallel lines to the equator that Latitudes – horizontal parallel lines to the equator that
run from east to west. run from east to west.
Longitudes – imaginary vertical lines that run from north Longitudes – imaginary vertical lines that run from north
to south to south.
Prime meridian – imaginary longitudinal line designated Prime meridian – imaginary longitudinal line designated
with 00. It divides the Earth into halves; east and west. with 00. It divides the Earth into halves; east and west.
Anti-meridian – imaginary longitudinal line designated Anti-meridian – imaginary longitudinal line designated
with 1800. with 1800.
Axis of Rotation – imaginary line running through the Axis of Rotation – imaginary line running through the
center of the Earth and joining the north and south pole. center of the Earth and joining the north and south pole.
Important Latitudes Important Latitudes
66.50 North – Arctic Circle 66.50 North – Arctic Circle
23.50 North – Tropic of Cancer 23.50 North – Tropic of Cancer
00 - Equator 00 - Equator
23.50 South - Tropic of Capricorn 23.50 South - Tropic of Capricorn
66.50 South - Antarctic Circle 66.50 South - Antarctic Circle
Earth’s surface Earth’s surface
- 29% of the surface is land. - 29% of the surface is land.
- Large land masses are called continents. - Large land masses are called continents.
- There are seven continents; Asia, Africa, North - There are seven continents; Asia, Africa, North
America, South America, Europe, Australia, and America, South America, Europe, Australia, and
Antarctica. Antarctica.
- 71% of Earth’s surface is covered with water - 71% of Earth’s surface is covered with water
- Large water bodies are called ocean. There are 5 - Large water bodies are called ocean. There are 5
massive oceans; Indian, Pacific, Atlantic, Arctic, massive oceans; Indian, Pacific, Atlantic, Arctic,
Southern Ocean. Southern Ocean.
- Planet Earth is tilted at 23.50. This caused the - Planet Earth is tilted at 23.50. This caused the
different seasons around the world. Some countries different seasons around the world. Some countries
experience 4 types of seasons; summer, spring, experience 4 types of seasons; summer, spring,
autumn and fall. Philippines has only 2 types; wet autumn and fall. Philippines has only 2 types; wet
and dry. and dry.
Exercise: Exercise:
Draw the figure below and label important latitudes. Draw the figure below and label important latitudes.
Figure 1. A globe representing important latitudes. Figure 1. A globe representing important latitudes.
