Keeping Time with the Skies Class 8 Long Question Answer

Keeping Time with the Skies Class 8 Long Question Answer

Keeping Time with the Skies Class 8 Long Question Answer

Question 1.

Explain how the phases of the Moon occur and their relationship with the Earth and Sun.

Answer:

The Moon's phases result from its position relative to the Earth and Sun. As the Moon orbits Earth, varying portions of its illuminated side are visible, creating phases from New Moon to Full Moon and back, reflecting sunlight towards Earth.

Question 2.

Discuss the significance of leap years in the Gregorian calendar.

Answer:

Leap years, occurring every four years, add an extra day to February, ensuring the calendar aligns with Earth's orbit around the Sun. This adjustment prevents seasonal drift, maintaining synchronisation with the tropical year and ensuring consistent seasonal timing.

Question 3.

Describe the importance of lunar calendars in cultural practices.

Answer:

Lunar calendars, based on the Moon's phases, guide various cultural and religious events, such as Eid-ul-Fitr and Diwali. They reflect natural cycles, influencing agricultural practices and traditional festivities, thereby connecting communities with celestial rhythms and seasonal changes.

Examples from real life

Question 1.

The celebration of Diwali and lunar phases

Answer:

Diwali, one of the most celebrated festivals in India, is a prime example of how lunar phases influence cultural practices. Diwali falls on the new Moon of the month of Kartika, which means its date shifts each year in the Gregorian calendar. This connection to the lunar cycle not only highlights the importance of the Moon in determining the timing of festivals but also reflects the agricultural practices of ancient societies that relied on lunar phases for planting and harvesting.

Question 2.

Makar Sankranti and the solar calendar

Answer:

Makar Sankranti is another significant festival that illustrates the relationship between celestial movements and cultural celebrations. This festival marks the transition of the Sun into the zodiac sign of Capricorn (Makar) and is celebrated around January 14 each year. It is one of the few Indian festivals that follows a solar calendar, which means it occurs on the same date annually in the Gregorian calendar. This celebration is linked to the winter solstice and the beginning of longer days, symbolising the end of winter and the onset of harvest season.

Question 3.

The Rashtriya Panchang and uniformity in timekeeping

Answer:

The Rashtriya Panchang, published annually by the Government of India, serves as a practical application of positional astronomy. It provides detailed calculations of the positions of celestial objects, such as the Moon and the Sun, to determine the dates of various festivals across the country. The Panchang helps ensure that celebrations are synchronised, allowing people from different regions to observe festivals together, despite geographical differences.