NCERT Class 7 Science MCQ | Chapter 12: Earth, Moon, and the Sun
1. Which object is at the centre of our solar system?
(A) Earth
(B) Moon
(C) Sun
(D) Mars
Answer: (C) Sun
2. What is the main source of light and heat for Earth?
(A) Moon
(B) Sun
(C) Mars
(D) Stars
Answer: (B) Sun
3. Earth takes approximately how much time to complete one revolution around the Sun?
(A) 24 hours
(B) 7 days
(C) 30 days
(D) 365¼ days
Answer: (D) 365¼ days
4. The movement of Earth around the Sun is called:
(A) Rotation
(B) Revolution
(C) Vibration
(D) Oscillation
Answer: (B) Revolution
5. Earth rotates around its:
(A) Orbit
(B) Equator
(C) Axis
(D) Atmosphere
Answer: (C) Axis
6. Approximately how long does Earth take to complete one rotation?
(A) 12 hours
(B) 24 hours
(C) 30 days
(D) 365 days
Answer: (B) 24 hours
7. The rotation of Earth is mainly responsible for:
(A) Seasons
(B) Day and night
(C) Phases of the Moon
(D) Solar eclipses
Answer: (B) Day and night
8. The path followed by Earth while moving around the Sun is called its:
(A) Axis
(B) Orbit
(C) Equator
(D) Hemisphere
Answer: (B) Orbit
9. The Moon is Earth’s:
(A) Star
(B) Planet
(C) Natural satellite
(D) Comet
Answer: (C) Natural satellite
10. Why does the Moon appear bright at night?
(A) It produces its own light
(B) It reflects sunlight
(C) It absorbs light from Earth
(D) It contains glowing gases
Answer: (B) It reflects sunlight
11. Approximately how long does the Moon take to complete one revolution around Earth?
(A) About 1 day
(B) About 7 days
(C) About 27 days
(D) About 365 days
Answer: (C) About 27 days
12. The different shapes of the illuminated part of the Moon seen from Earth are called:
(A) Moon phases
(B) Moon orbits
(C) Moon seasons
(D) Moon rays
Answer: (A) Moon phases
13. When the Moon is between the Sun and Earth, which phase is generally observed?
(A) Full Moon
(B) New Moon
(C) Half Moon
(D) Crescent Moon
Answer: (B) New Moon
14. During a full moon, the Moon appears:
(A) Completely dark
(B) Half illuminated
(C) Almost completely illuminated
(D) Invisible
Answer: (C) Almost completely illuminated
15. A solar eclipse can occur when:
(A) Earth is between the Sun and Moon
(B) Moon is between the Sun and Earth
(C) Sun is between Earth and Moon
(D) Earth stops rotating
Answer: (B) Moon is between the Sun and Earth
16. A lunar eclipse can occur when:
(A) Moon is between Earth and Sun
(B) Sun is between Earth and Moon
(C) Earth is between Sun and Moon
(D) Moon stops moving
Answer: (C) Earth is between Sun and Moon
17. Why do we see approximately the same side of the Moon from Earth?
(A) The Moon does not rotate
(B) The Moon rotates once in the same time that it revolves around Earth
(C) Earth blocks the other side
(D) The Sun illuminates only one side permanently
Answer: (B) The Moon rotates once in the same time that it revolves around Earth
18. Which force keeps Earth moving around the Sun?
(A) Magnetic force
(B) Frictional force
(C) Gravitational force
(D) Muscular force
Answer: (C) Gravitational force
19. Which force keeps the Moon in orbit around Earth?
(A) Gravitational force
(B) Frictional force
(C) Electrical force
(D) Muscular force
Answer: (A) Gravitational force
20. What causes the change from day to night?
(A) Earth’s revolution around the Sun
(B) Earth’s rotation on its axis
(C) Moon’s revolution around Earth
(D) Sun’s movement around Earth
Answer: (B) Earth’s rotation on its axis
21. If it is daytime in one part of Earth, why can it be nighttime in another part?
(A) Earth has stopped rotating
(B) Different parts of Earth face the Sun at different times
(C) The Moon blocks sunlight everywhere
(D) The Sun changes its size
Answer: (B) Different parts of Earth face the Sun at different times
22. Which statement about stars is correct?
(A) All stars are planets
(B) Stars produce their own light
(C) Stars reflect only moonlight
(D) Stars revolve around Earth every day
Answer: (B) Stars produce their own light
23. Which of the following is a natural satellite?
(A) Sun
(B) Earth
(C) Moon
(D) Venus
Answer: (C) Moon
24. Why do we experience different seasons during the year?
(A) Earth changes its distance from the Moon every day
(B) Earth’s axis is tilted as Earth revolves around the Sun
(C) The Sun stops producing heat
(D) The Moon changes its shape
Answer: (B) Earth’s axis is tilted as Earth revolves around the Sun
25. Which sequence correctly represents the basic arrangement of the Sun, Earth, and Moon in the solar system?
(A) Sun → Earth → Moon
(B) Moon → Sun → Earth
(C) Earth → Sun → Moon
(D) Moon → Earth → Sun
Answer: (A) Sun → Earth → Moon
