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Class 8 Keeping Time with the Skies worksheet
CBSE Science. Phases of the Moon, lunar, solar and luni-solar calendars, leap years, satellites. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
The Moon shines because it:
- is on fire
- reflects the Earth's light only
- makes its own light
- reflects sunlight
Answer
(d) reflects sunlight
- 2.
Which phase of the Moon is this: a fully lit round Moon?
- full Moon
- waning crescent
- last quarter (waning half)
- first quarter (waxing half)
Answer
(a) full Moon
- 3.
Is 2026 a leap year?
- yes
- only for 100 years
- only in India
- no
Answer
(d) no
2026 ÷ 4 = 506.5
Section B · short answer
- 4.
Why does the Moon show phases?
Answer
Half the Moon is always lit by the Sun; as it goes around the Earth we see different amounts of that lit half.
- 5.
Are these leap years? Write "yes" or "no": (a) 1700 (b) 1996
Answer
(a) no (b) yes
divisible by 4; century years must be divisible by 400
Section C · long answer
- 6.
Describe the phases of the Moon over a lunar month.
Answer
From new Moon (not visible), a thin waxing crescent appears; after about a week it is a half Moon; then waxing gibbous; after about two weeks full Moon. Then it wanes: waning gibbous, half Moon, waning crescent, and back to new Moon after about 29.5 days.
Fresh sheets for your child
In the app, every Keeping Time with the Skies sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.