Change of seasons

VOL 1-UNIT 3, L-1
WEATHER, CLIMATE AND
CLIMATE ZONES :
CHANGE OF SEASONS-
REVOLUTION OF THE
EARTH

Look at the picture and answer the
following:-
•1) Identify the movement of the
earth.
•2)The imaginary line running
through the center of the Earth
from North pole to the South Pole .
______________ .
3)The time taken by the earth to
complete one rotation on its axis.
_______________

Let’s Rewind

EARTH’S HEMISPHERES

The Earth can be
divided into (2
groups of 2) four
hemispheres

1)Northern
2)Southern
3)Eastern
4)Western

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

What is an Equator and

Prime Meridian?

Recap

BIG QUESTION

What if all parts of the Earth received an equal

amount of heat energy from the Sun?

LEARNING OBJECTIVES

Describe how

earths movement
effects the climate

of the earth.

Explore how
changes of

seasons occur on

the earth.

CASE STUDY

• Amal and his friends visited

Europe. They noticed longer
days and shorter nights during
summer, and that the opposite
happens during winter.

• Why are the days longer and

shorter nights in summer and
its opposite happens in winter?

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

CASE STUDY

• Amal and his friends visited

Europe. They noticed longer
days and shorter nights during
summer, and that the opposite
happens during winter. His
friends predicted that this may
be due to the tilted axis of the
earth and the earth’s
revolution.

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

OBSERVE THE
PICTURE

The Earth revolves
around the sun in a
specific path called an
Orbit.
The Earth is slightly
tilted at 23.5 degrees

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

Watch the video on the movement of the
Earth around the sun.

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

Multiple Choice

1.______________ is the movement of the Earth around the sun.

• Rotation

• Revolution

• clockwise

• anticlockwise

Multiple Choice

2. 2. Longer days and shorter nights during___________, and that the opposite happens during______________.

• day and night
• spring and fall
• summer and winter
• hot and cold

Multiple Choice

3.The earth revolves around the sun in a specific path called an ______________

• axis

• elliptical

• anticlockwise

• orbit

Do you think that seasons will be
the same in both the hemispheres
of the Earth?
Why/why not?

Think-Pair-Share

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

Different seasons are caused on the
earth due to its revolution.
The earth being tilted on its axis, it is
summer in the Northern hemisphere as
it is tilted towards the sun and winter in
the southern hemisphere.
Thus the seasons are opposite in both
the hemispheres.

Think-Pair-Share

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

What changes are caused on the
earth due to its revolution?

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

The earth takes 365 ¼ days to
complete one revolution. During its
revolution, one part of the earth
faces the sun, and the other part
doesn’t. Thus, different seasons are
observed such as summer, winter,
spring, autumn in both the
hemispheres as the earth revolves in
an orbit around the sun.

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

Achievers

1.Which is most
responsible for change
of seasons on the earth?
2. The Northern
hemisphere is tilted
away from the sun from
September to March.
Which season will be
observed in the
Northern hemisphere?

Explorers

The student makes the model

to understand seasons on

Earth’s NH and SH by placing

a globe on the table and

flashing a torchlight on the

globe as shown. Which

season does the student’s

model represent?

Scholars

The diagram shows earth

in different locations

around the sun. Which
location represent earth
when it is winter in the
a) Southern Hemisphere
b) Northern Hemisphere
c) Justify your answer.

What would happen if the
earth not tilted on its axis?

Goal Post

➢ Identify the movements of the earth.

➢ Explain how do change of seasons occur on the earth

Multiple Choice

1. 1. The change in seasons on the earth occurs due to ________

• A. The distance between the sun and the earth is not constant.

• B. The axis of rotation of the Earth is parallel to the plane of its orbit.

• D. The axis of rotation of the Earth is tilted with respect to the plane of its orbit.

Multiple Choice

2.       Arrange the following from the smallest to the biggest.

Moon, Jupiter, Sun, Earth

• A. Moon, Sun, Earth, Jupiter

• B.    Moon, Jupiter, Earth, Sun

• C.    Moon, Earth, Jupiter, Sun

• D) Earth, Moon, Sun, Jupiter

Multiple Choice

3. Ram: Only the Sun moves around the Earth.

 Rahim: Earth moves around the sun on an elliptical orbit.

Manaaz: Earth revolves around the sun on a tilted axis.

Jennifer: Neither the Sun nor the Moon moves around the Earth.

Who is correct?

• A. Ram

• B. Rahim

• C. Manaaz & Jennifer

• D. Rahim and Manaaz

Multiple Choice

4. Which of these would be the time taken by the Earth to turn once on its own axis?

• A. a day

• B. a month

• C. a week

• D. an year

EXTENSION TASK

On a paper plate illustrate the revolution of the

earth around the sun.

Try this!!

Find out how does the revolution of the earth affect

the plants and animals on the earth.