Class 8 Science Chapter 11: Keeping Time with the Skies — practice questions with answers
Free practice for Class 8 Science, Chapter 11: Keeping Time with the Skies. Try the solved questions below, then take a free test with instant marking and explanations.
48 questions15 easy, 23 medium, 10 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. Meera saw the Moon in the sky in the afternoon during a kite festival. Is this possible?
- Yes — the Moon can be visible during the day on many days
- No, never
- Only during eclipses
- Only in Ahmedabad
Show answer
Answer: A. Yes — the Moon can be visible during the day on many days
Why: She had thought it appeared only at night. [p.171, p.187]
Why: She had thought it appeared only at night. [p.171, p.187]
Q2. Why does the Moon shine?
- It reflects sunlight
- It produces its own light
- It burns gas
- It reflects Earth’s city lights
Show answer
Answer: A. It reflects sunlight
Why: The half facing the Sun is illuminated. [p.174]
Why: The half facing the Sun is illuminated. [p.174]
Q3. The changing shapes of the bright part of the Moon seen from Earth are called the ______ of the Moon.
Show answer
Answer: phases
Why: The cycle takes about a month. [p.173]
Why: The cycle takes about a month. [p.173]
Q4. If the Moon rises at 7:00 p.m. today, about how many minutes later will it rise tomorrow?
Show answer
Answer: 50 (± 0)
Why: About 50 minutes later each day. [p.177]
Why: About 50 minutes later each day. [p.177]
Q5. What mainly causes the apparent daily motion of the Sun from east to west?
- Earth’s rotation on its axis
- The Sun moving around Earth
- Earth’s revolution
- The Moon
Show answer
Answer: A. Earth’s rotation on its axis
Why: This gives day and night. [p.178]
Why: This gives day and night. [p.178]
Q6. From Table 11.2, the shortest shadow was at 12:20, 12:20 and 12:19 on three days. What is the duration (hours) of a solar day, approximately?
Show answer
Answer: 24 (± 0)
Why: About 24:00 and 23:59 — nearly 24 hours. [p.179]
Why: About 24:00 and 23:59 — nearly 24 hours. [p.179]
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Frequently asked questions
How many practice questions are there for Class 8 Science Chapter 11: Keeping Time with the Skies?
48 questions (15 easy, 23 medium, 10 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 8 Science syllabus, used by CBSE and many state boards.