If you are seeking for MCQ on Class 3 Science In the Sky you have come to the correct source.
What is the smallest planet in our solar system?
a) Venus
b) Earth
c) Mercury
d) Mars
Answer: c) Mercury
Which planet is considered the biggest in the solar system?
a) Saturn
b) Jupiter
c) Uranus
d) Neptune
Answer: b) Jupiter
Which planet is closest to the Sun?
a) Venus
b) Earth
c) Mercury
d) Mars
Answer: c) Mercury
How many planets are there in our solar system?
a) Seven
b) Eight
c) Nine
d) Ten
Answer: b) Eight
Why do planets appear to have light?
a) They generate their own light.
b) They reflect the Sun’s light.
c) They have their own source of illumination.
d) They absorb light from the atmosphere.
Answer: b) They reflect the Sun’s light.
Which position does Earth hold in the order of planets from the Sun?
a) First
b) Second
c) Third
d) Fourth
Answer: c) Third
What distinguishes Earth from other planets in our solar system?
a) It is the smallest planet.
b) It is the only planet with life
c) It has a unique color.
d) It has the highest number of moons.
Answer: b) It is the only planet with life.
How many layers does the Earth have?
a) Two
b) Three
c) Four
d) Five
Answer: b) Three
What is the outermost layer of the Earth called?
a) Core
b) Mantle
c) Crust
d) Atmosphere
Answer: c) Crust
Which movement of the Earth causes day and night?
a) Revolution
b) Rotation
c) Oscillation
d) Orbiting
Answer: b) Rotation
How long does it take for the Earth to complete one rotation?
a) 12 hours
b) 24 hours
c) 48 hours
d) 72 hours
Answer: b) 24 hours
In which direction does the Earth rotate?
a) North to South
b) East to West
c) South to North
d) West to East
Answer: b) East to West
What causes the change in seasons on Earth?
a) Earth’s rotation
b) Earth’s orbit
c) Earth’s tilt and revolution
d) Earth’s oscillation
Answer: c) Earth’s tilt and revolution
Which planet is known as our nearest star?
a) Venus
b) Mars
c) Mercury
d) Sun
Answer: d) Sun
What is the temperature on the Sun’s surface?
a) 1000°C
b) 3000°C
c) 5400°C
d) 7000°C
Answer: c) 5400°C
What is the primary source of heat and light for Earth?
a) Moon
b) Stars
c) Sun
d) Jupiter
Answer: c) Sun
On which date did the first person set foot on the Moon?
a) 1st July 1969
b) 20th July 1969
c) 1st August 1969
d) 20th August 1969
Answer: b) 20th July 1969
What causes the different shapes or phases of the Moon?
a) Earth’s rotation
b) Moon’s orbit
c) Sun’s rotation
d) Earth’s revolution
Answer: b) Moon’s orbit
What do we call the groups of stars forming certain shapes in the sky?
a) Galaxies
b) Clusters
c) Constellations
d) Nebulas
Answer: c) Constellations
What are huge balls of fire like the Sun called?
a) Nebulas
b) Planets
c) Stars
d) Galaxies
Answer: c) Stars
What is the Moon’s distance from Earth?
a) 384,000 km
b) 500,000 km
c) 200,000 km
d) 600,000 km
Answer: a) 384,000 km
How long does it take for the Earth to complete one revolution around the Sun?
a) 100 days
b) 365 days
c) 500 days
d) 600 days
Answer: b) 365 days
