Keeping Time with the Skies Class 8 Short Question Answer

Keeping Time with the Skies Class 8 Short Question Answer

Keeping Time with the Skies Class 8 Short Question Answer

Question 1.

How often does the Moon rise later each day, and what is the significance of this observation?

Answer:

The Moon rises about 50 minutes later each day, which is significant as it helps to explain the changing times of moonlit nights and the regular pattern of tides.

Question 2.

What are the two main types of calendars mentioned in the chapter?

Answer:

The two main types of calendars mentioned are lunar calendars, which are based on the Moon's phases, and solar calendars, which are based on the Earth's orbit around the Sun.

Question 3.

What causes the different phases of the Moon?

Answer:

The different phases of the Moon are caused by the varying angles of sunlight that illuminate the Moon as it orbits the Earth, allowing us to see different portions of its illuminated surface.

Question 4.

Why do lunar calendars have fewer days than solar calendars?

Answer:

Lunar calendars consist of 12 lunar months, totalling approximately 354 days, which is about 11 days shorter than the solar year of approximately 365 days, necessitating adjustments like intercalary months to realign with the seasons.

Question 5.

How does the position of the Sun change with the seasons?

Answer:

The Sun rises slightly north of East during summer and south of East during winter, with these changes marking the solstices and

influencing the length of daylight throughout the year.

Question 6.

What is the significance of the term 'Uttarayan' and 'Dakshinayan' in relation to the Sun's movement?

Answer:

'Uttarayan' refers to the Sun's northward movement from December to June, while 'Dakshinayan' describes its southward movement from June to December, both of which are linked to seasonal changes.