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🧾 CBSE · Class 8

Class 8 Science: Keeping Time with the Skies Worksheet (with Answers)

A free, print-ready worksheet on Keeping Time with the Skies for CBSE Class 8 Science, with a matching answer key. Use the sample below, or build your own with the exact mix of questions you need — no login, no ads.

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Sample worksheet

7 of 17 questions from this chapter. Generate your own for the full set, more variations, and a clean print layout.

  1. 1. Day and night are caused by the Earth's:
    • (a) revolution
    • (b) tilt only
    • (c) distance from the Sun
    • (d) rotation
  2. 2. The Earth completes one rotation in about:
    • (a) 1 hour
    • (b) 24 hours
    • (c) 1 month
    • (d) 1 year
  3. 3. One revolution of the Earth around the Sun takes about:
    • (a) 365¼ days
    • (b) 24 hours
    • (c) 30 days
    • (d) 7 days
  4. 4. The seasons are mainly due to the Earth's:
    • (a) rotation
    • (b) tilted axis during revolution
    • (c) phases
    • (d) clouds
  5. 5. What is the difference between rotation and revolution?
  6. 6. Why does the Moon have phases?
  7. 7. Explain how the movements of the Earth give us the day and the year.
View answers
  1. 1. (d) rotation — Rotation on its axis causes day and night.
  2. 2. (b) 24 hours — One rotation takes about 24 hours.
  3. 3. (a) 365¼ days — A revolution takes roughly 365¼ days — a year.
  4. 4. (b) tilted axis during revolution — The axial tilt during revolution causes seasons.
  5. 5. Rotation is the Earth spinning on its axis (day/night); revolution is the Earth moving around the Sun (the year).
  6. 6. As it orbits the Earth, we see different sunlit portions of it.
  7. 7. The Earth spins once on its axis in about 24 hours; this rotation turns each place towards and away from the Sun, giving day and night and the unit we call a day. At the same time, the Earth travels once around the Sun in about 365¼ days; this revolution defines the year. Because of the leftover quarter-day, we add a leap day every four years to keep the calendar in step with the Earth's orbit.
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How it works

Every question is drawn from StudyMatic’s own Science bank for Keeping Time with the Skies — nothing is auto-generated or invented. Pick how many of each type you want, add your own questions if you like, choose 1–4 paper sets for anti-cheating, and print the worksheet and answer key separately or save them as PDF.

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FAQ

Is this Class 8 Science worksheet on Keeping Time with the Skies free?
Yes — it is completely free, with no login and no ads. You can print it or save it as a PDF, and generate unlimited variations.
Does the Keeping Time with the Skies worksheet come with answers?
Yes. Every worksheet has a separate answer key with the correct answers, short explanations and marks, so it is ready for marking.
Can I choose how many questions and which types?
Yes. Open the generator for this chapter and set how many MCQs, short, long and HOTS questions you want; totals and marks update live, and you can swap any single question.
Which board and class is this for?
This worksheet is aligned to CBSE Class 8 Science, chapter “Keeping Time with the Skies”.