Keeping Time with the Skies
CBSE · Class 8 · Science
Practice quiz for Keeping Time with the Skies — CBSE Class 8 Science. MCQs and questions with answers to test your preparation.
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Quick Quiz: Keeping Time with the Skies
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
What causes the different phases of the Moon?
How long does it take for the Moon to complete one cycle of phases?
A solar day is based on which natural phenomenon?
Which type of calendar is the Gregorian calendar?
Sample Questions
Which of the following are correct about the new Moon day?
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The Moon is not visible from Earth, It is also called Amavasya, The Moon appears closest to the Sun in the sky, Only the non-illuminated side faces Earth
On new Moon day (Amavasya), the Moon is between Earth and Sun, so only its dark side faces us, making it invisible. It appears closest to the Sun in our sky.
The period when the bright part of the Moon decreases is called the _____ period.
True or False: Lunar eclipses cause the phases of the Moon.
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False
False. Lunar eclipses do not cause Moon phases. Moon phases are caused by different portions of the illuminated Moon being visible from Earth. Lunar eclipses are rare events when Earth's shadow falls on the Moon.
Which of the following are characteristics of lunar calendars?
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They are based on the Moon's phases and use a month of nearly 29.5 days, Twelve lunar months add up to about 354 days
Lunar calendars are based on the Moon's phases, and one lunar month is about 29.5 days. Twelve lunar months add up to 354 days, which is about 11 days shorter than the solar year. Because of this, the seasons do not stay synchronised with the same lunar months from year to year.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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