The document discusses the two movements of the Earth - rotation and revolution. Rotation is the spinning of the Earth on its axis from west to east, taking 23 hours, 56 minutes and 4.2 seconds to complete one rotation. Revolution is the Earth's orbit around the Sun, taking 365 1/4 days to complete one revolution. Due to these motions, we experience day and night, seasons, sunrise and sunset, Coriolis effect, different time zones, and heat zones.

2. There are two movements of the earth, rotation
and revolution. Based from the movements of the
earth we can also describe the effects of the earth’s
motion

3. The spinning of the earth around its axis is called rotation.
Earth rotates from west to east. It is clockwise as seen above
the North Pole and counterclockwise as seen above the
South Pole. The period of one complete rotation is defined
as day and it takes 23hrs. 56 minutes and 4.2 seconds

4. Revolution is the earth’s orbit around the sun.
Earth revolves around the sun as it rotates on its
axis. One complete revolution of the earth is 365 ¼
days. Earth’s axis is tilted

5. Effects of the Earth’s motion

6. The occurrence of day and night is because of the earth’s
rotation on its axis .Places facing the sun experience daytime
while those facing away from the sun experiencenighttime.
The duration of the day and night is not equal of all places
of the earth because of its inclination at 23 ½ degrees.
The length of daytime and nighttime varies as earth revolves
arou around the sun around the sun

7. Sunrise and sunset arise because of the
rotation of the earth that the sun rises
in the east and sets in the west

8. Earth’s rotation affects the flow
of air and water on earth.
Flowing air and water are
diverted from north-south
direction to an east-west
direction because of earth’s
rotation . The diversion of
direction is called Coriolis
effect.
Coriolis effect is the deflection
of wind moving toward the
equator due to the earth’s
rotation.

9. Earths rotation affects the
movement of water in the oceans

10. Rotation also causes difference in time. The
reason why other countries have different time
zones

11. There are different seasons from different
countries because of the tilting of the Earth’s axis
and the revolution around the sun.
A particular season is also influenced by its
location : the southwest monsoon and the
northeast monsoon and trade winds

12. Perihelion is when the earth is closest to the sun due to
the earth’s revolution.
Aphelion is when the earth is farthest from the sun also
due to the earth’s revolution

13. Creation of heat
zones because of the
revolution of the
earth around the sun

14. What are the two movements of the earth?
What is rotation?
What is revolution?

15. Why do we have day and night?
How many seasons do other countries have?
What about the Philippines?
Why do we have different seasons?

16. Aside from having day and night and the
different seasons, can you describe other
effects of the earth’s motion?

17. 1.Sun rises in the east and sets in the west
2.The earth’s rotation causes the winds moving from the poles toward the
equator to be deflected or turns sideward, this wind behavior is due to Coriolis
effect.
3.Rotation causes different time in different countries
4.Earth’s revolution around the sun maintains its inclination at 23 ½ degrees on
its axis and one complete revolution around the sun takes 365 ¼ days
5.Perihelion is when the earth is closest to the sun
6.Aphelion is when the earth is farthest from the sun
7.Earth’s rotation affects the movement of water in the oceans
8.Speed of the earth’s rotation has affected the shape of the earth which is
ellipse in shape
9.Solstices time of the year where the sun is farthest north of the equator and
farthest south of the equator
10.The speed of rotation also affects the movement of the wind.

18. Match the definition in column A with the words in column B. Write the letter before the
number.
Column A Column B
______1. Movement of the earth around the sun A. rotation
______2. The path of the earth follows as it revolves around the sun B. axis
______3.Imaginary line in which the earth rotates C. revolution
______4. The turning od the earth on its axis D. Coriolis effect
______5.Deflection of wind moving toward the equator due E. orbit
to Earth’s rotation
F. seasons

19. Fill in the blanks with the correct words to complete the paragraph on the earth’s motion.
The Earth’s Motion
Earth has two types of motions. The movement of the earth on its
1.______ is called 2._____. Earth’s movement around the sun in a fixed paths or 3.______ is
called 4.______. Earth’s revolution around the sun causes the four 5._______. And one
complete revolution around the sun takes 6.______ days. As earth revolves around the sun
it maintains its 7.______ at 23 ½ degrees on its axis. Earth rotates from 8.______ to
9.______ in a 10.______ motion. That is why the sun appears to rise in the east and sets in
the west.
orbit revolution 365 ¼ west
Axis rotation inclination
East seasons counterclockwise

20. Illustrate the two movements of the earth and
differentiate each. Write 3 effects of the earth’s
motion and describe.

21. Thank you!