The following 20 Multiple Choice Questions (MCQ) are based on
Chapter 12: Beyond Earth from the NCERT Class 6
Science textbook Curiosity. Each question has four options - select the
best answer and click to check.
Instructions: Read each question carefully. Choose the most
appropriate option from (a), (b), (c), or (d). Click
Show Answer to reveal the correct answer with explanation.
Multiple Choice Questions
1Stars are objects that:
(a) Shine with their own light
(b) Only reflect sunlight
(c) Are all planets
(d) Appear only in winter
(a) is correct
Stars generate and emit energy, including visible light.
2A constellation is:
(a) A single planet
(b) A cloud
(c) The Moon's shadow
(d) An apparent pattern formed by a group of stars
(d) is correct
Cultures imagined shapes by connecting stars in the sky.
3Constellations were useful to travellers for:
(a) Separating mixtures
(b) Testing food
(c) Recognising directions and seasons
(d) Measuring body temperature
(c) is correct
Familiar star patterns provided navigation clues before modern instruments.
4The Big Dipper is part of the constellation:
(a) Cassiopeia
(b) Ursa Major
(c) Orion only
(d) Scorpius
(b) is correct
Its seven prominent stars form a well-known part of the Great Bear.
5The Pole Star is useful because it appears nearly:
(a) Fixed in the northern sky
(b) Fixed in the south
(c) At the zenith everywhere
(d) Beside the Moon every night
(a) is correct
It lies close to the direction of Earth's rotation axis.
6To locate the Pole Star using the Big Dipper, use the two:
(a) Stars in its handle tip only
(b) Brightest planets
(c) Moon phases
(d) Pointer stars at the outer side of its bowl
(d) is correct
An imaginary line through the pointer stars leads toward Polaris.
7Stars appear to move across the night sky mainly because:
(a) The Moon pushes them
(b) Clouds carry them
(c) Earth rotates
(d) All stars orbit Earth daily
(c) is correct
Earth's rotation makes the celestial sphere appear to turn.
8Stars are difficult to see during daytime because:
(a) Earth has no atmosphere at night
(b) Scattered sunlight makes the sky bright
(c) They stop shining
(d) They move behind the Moon
(b) is correct
The bright daytime sky overwhelms faint starlight.
9For night-sky observation, the best location is:
(a) A dark place away from city lights
(b) Under bright floodlights
(c) Inside a closed cupboard
(d) Beside a flashing sign
(a) is correct
Low light pollution makes faint objects easier to see.
10Which is a safe rule for sky watching?
(a) Use any dark glass for the Sun
(b) Aim binoculars at the Sun
(c) Watch lightning through a telescope
(d) Never look directly at the Sun
(d) is correct
Direct sunlight can permanently damage eyes, especially through optical instruments.
11The solar system consists of the Sun and:
(a) All stars in the universe
(b) Only eight planets
(c) Objects gravitationally bound to it
(d) Only Earth and Moon
(c) is correct
Planets, dwarf planets, moons, asteroids and comets orbit the Sun.
12The number of planets in the solar system is:
(a) Twelve
(b) Eight
(c) Nine
(d) Seven
(b) is correct
The recognised planets from Mercury through Neptune total eight.
13Which planet is closest to the Sun?
(a) Mercury
(b) Venus
(c) Earth
(d) Mars
(a) is correct
Mercury has the innermost planetary orbit.
14Which planet is known for supporting life as we know it?
(a) Mercury
(b) Jupiter
(c) Neptune
(d) Earth
(d) is correct
Earth has liquid water and other suitable conditions for diverse life.
15The largest planet is:
(a) Mars
(b) Mercury
(c) Jupiter
(d) Earth
(c) is correct
Jupiter is the solar system's largest planet.
16The planet famous for its prominent rings is:
(a) Mercury
(b) Saturn
(c) Venus
(d) Mars
(b) is correct
Saturn's extensive ring system is readily visible through a telescope.
17Earth's natural satellite is the:
(a) Moon
(b) Sun
(c) Venus
(d) Pole Star
(a) is correct
The Moon revolves around Earth.
18Asteroids are found in large numbers mainly between:
(a) Earth and Moon
(b) Mercury and Sun
(c) Uranus and Neptune only
(d) Mars and Jupiter
(d) is correct
The main asteroid belt occupies this region.
19Our solar system belongs to the:
(a) Big Dipper
(b) Orion nebula as its galaxy
(c) Milky Way galaxy
(d) Andromeda galaxy only
(c) is correct
The Milky Way contains the Sun and hundreds of billions of other stars.
20The universe includes:
(a) Only Earth and Moon
(b) All galaxies, matter, energy and space
(c) Only the solar system
(d) Only visible stars
(b) is correct
The universe is the totality of everything known to exist.
