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Chapter 12 of 12
Revision Notes

Earth, Moon, and the Sun

CBSE · Class 7 · Science

Quick revision notes for Earth, Moon, and the Sun — CBSE Class 7 Science. Key concepts, formulas, and definitions for last-minute revision.

44 questions24 flashcards5 concepts

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Key Topics to Revise

1

Rotation of the Earth

  • The Sun appears to move across the sky from East to West due to Earth's rotation, not because the Sun actually moves
  • Earth rotates on its axis (imaginary line passing through North and South poles) once every 24 hours
  • When viewed from above the North Pole, Earth rotates anti-clockwise (West to East)
2

Revolution of the Earth

  • Earth revolves around the Sun in a nearly circular orbit while rotating on its axis
  • One complete revolution takes approximately 365 days and 6 hours (1 year)
  • Earth's revolution causes the changing view of night sky throughout the year
3

Seasons on Earth

  • Seasons occur due to Earth's tilted axis (not due to distance from Sun)
  • Earth's axis is tilted at about 23.5° and maintains this tilt throughout its orbit
  • When Northern Hemisphere tilts toward Sun, it experiences summer; Southern Hemisphere experiences winter
4

Solar Eclipse

  • Solar eclipse occurs when Moon comes between Earth and Sun, blocking sunlight
  • Moon can block Sun completely despite being smaller because it's much closer to Earth
  • Apparent size depends on both actual size and distance from observer

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Full Notes

Key Concepts

Earth spins on its own axisEarth moves around the SunEarth's axis of rotation is notA solar eclipse occurs whenA lunar eclipse occurs when Earth

Frequently Asked Questions

What are the important topics in Earth, Moon, and the Sun for CBSE Class 7 Science?
Earth, Moon, and the Sun covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Earth, Moon, and the Sun — CBSE Class 7 Science?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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