Page 132 - SST Class 06

D. Describe the diagram in your own words.

North Pole North Pole
6 months daylight 6 months daylight
N N
66½°
23½° Short Long Short 66½°
Long
Night Day
0° Day Night
Sun 23½°
Equator
23½° Long
0°
Short
Long Short
Night Day
66½°
Day Night 23½°
66½°
South Pole S South Pole S
6 months darkness 6 months darkness
E. Answer the following questions.
1. At what angles is the earth tilted with respect to its orbital plane and perpendicular to
the orbital plane?

2. What is meant by rotation of the earth?
3. How much time does the earth takes to complete one revolution?
4. Why is Japan known as the ‘Land of the Rising Sun’?

5. On which two dates is neither of the poles tilted towards the sun nor away from it?
6. What is the effect of direct and slanting rays of the sun at ground level on the earth?
7. Explain why days and nights are of unequal lengths beyond the equator.

8. Explain the position of the earth on June 21 in the Northern and Southern Hemisphere.
9. Explain the position of the elliptical orbit of the earth on seasons.
10. Why are days longer in summer than nights? Explain and mention the effects also.

H TS Question
H TS Question
What will happen if no rotation of the earth will occur?

Activity & ProjectActivity & ProjectActivity & ProjectActivity && ProjectProject & Project
Activity
Activity
A. With the help of a diagram, explain the cycle of seasons.
B. Describe diagrammatically, the inclination of the earth on its axis.

C. Collect pictures of plants in different seasons. Paste them in your scrap book.

Value Based Question
Value Based Question
Why do poles have a six-month day? Think and justify your answer.

Social Science-6 132