Keeping Time with the Skies Class 8 Fill in the Blanks
hardKeeping Time with the Skies Class 8 Fill in the Blanks
Keeping Time with the Skies Class 8 Fill in the Blanks
Question 1.
A lunar calendar primarily uses the phases of the ............ for counting days and months.
Answer:
Moon
Question 2.
The Moon takes approximately ............ days to complete one full cycle of its phases.
Answer:
29.5
Question 3.
The cycle of the Earth's seasons, which defines a solar year, takes nearly ............ days to complete one revolution around the Sun
Answer:
365
Question 4.
The period during which the Moon's bright portion is increasing is called the ............ Paksha, while the period when it is decreasing is known as ............ Paksha.
Answer:
Shukla; Krishna
Question 5.
On a full Moon Day, the Moon is nearly............ the Sun, meaning when the Sun rises n the East, the Moon is almost setting in the West.
Answer:
opposite to
Keeping Time with the Skies Class 8 True or False
Question 1.
The phases of the Moon occur due to the Earth's shadow falling on the Moon.
Answer:
False
Question 2.
A lunar eclipse can only occur on a full Moon day.
Answer:
False
Question 3.
The Moon rises and sets at the same time every day.
Answer:
False
Question 4.
Calendars are based solely on the solar year and do not consider lunar cycles.
Answer:
False
Question 5.
The Moon can be seen at any time of the day or night, depending on its phase.
Answer:
True
Keeping Time with the Skies Class 8 Match the Following
Question 1.
Match the items given in Column A with those given in Column B.
Phases of the Moon:
| Column A | Column B |
| (i) New Moon | (a) The Moon is fully illuminated |
| (ii) First Quarter | (b) The Moon is not visible from Earth |
| (iii) Full Moon | (c) The Moon appears half-lit |
| (iv) Last Quarter | (d) The Moon appears half-lit, but the opposite side |
Answer:
| Column A | Column B |
| (i) New Moon | (b) The Moon is not visible from Earth |
| (ii) First Quarter | (c) The Moon appears half-lit |
| (iii) Full Moon | (a) The Moon is fully illuminated |
| (iv) Last Quarter | (d) The Moon appears half-lit, but the opposite side |
Question 2.
Match the items given in Column A with those given in Column B.
Astronomical events and timekeeping:
| Column A | Column B |
| (i) Solar Calendar | (a) Based on the Earth's rotation |
| (ii) Lunar Calendar | (b) Based on the Moon's phases |
| (iii) Luni-Solar Calendar | (c) Combines both solar and lunar cycles |
| (iv) Leap Year | (d) Adjusts the calendar to align with the solar year |
Answer
| Column A | Column B |
| (i) Solar Calendar | (a) Based on the Earth's rotation |
| (ii) Lunar Calendar | (b) Based on the Moon's phases |
| (iii) Luni-Solar Calendar | (c) Combines both solar and lunar cycles |
| (iv) Leap Year | (d) Adjusts the calendar to align with the solar year |
Question 3.
Match the items given in Column A with those given in Column B.
Observations of the Moon:
| Column A | Column B |
| (i) Crescent Moon | (a) Seen in the afternoon sky |
| (ii) Gibbous Moon | (b) Appears shortly after sunset |
| (iii) Full Moon | (c) Visible all night |
| (iv) New Moon | (d) Not visible from Earth |
Answer:
| Column A | Column B |
| (i) Crescent Moon | (b) Appears shortly after sunset |
| (ii) Gibbous Moon | (a) Seen in the afternoon sky |
| (iii) Full Moon | (c) Visible all night |
| (iv) New Moon | (d) Not visible from Earth |