Online Test — Earth & Space
10 Questions • 12 min • Chapter MCQ
12:00
Question 1 of 10
medium
Stars appear to twinkle because their light passes through Earth's moving…
Rocks
Air
Oceans
Soil
Explanation: Moving air bends starlight, making stars twinkle.
Question 2 of 10
hard
The planets farthest from the Sun are very…
Bright
Hot
Cold
Small only
Explanation: Far from the Sun's heat, the outer planets are very cold.
Question 3 of 10
easy
The planet nearest to the Sun is…
Neptune
Mercury
Earth
Saturn
Explanation: Mercury is the closest planet to the Sun.
Question 4 of 10
medium
A telescope is a tool that helps us…
See faraway objects in space
Hear stars
Smell planets
Cook food
Explanation: Telescopes let us see distant space objects.
Question 5 of 10
medium
Small rocky bodies orbiting the Sun, mostly between Mars and Jupiter, are…
Asteroids
Stars
Moons
Suns
Explanation: The asteroid belt lies between Mars and Jupiter.
Question 6 of 10
medium
The Moon's gravity is weaker than Earth's, so on the Moon you would weigh…
Less
More
The same
Nothing forever
Explanation: Weaker Moon gravity means you weigh less there.
Question 7 of 10
easy
Stars are huge balls of hot, glowing…
Ice
Rock
Gas
Water
Explanation: Stars are giant balls of glowing gas.
Question 8 of 10
medium
The Sun is actually a…
Comet
Planet
Moon
Star
Explanation: The Sun is the star of our Solar System.
Question 9 of 10
hard
The Sun's strong gravity is important because it…
Cools them down
Makes them red
Holds all the planets in their orbits
Stops them spinning
Explanation: The Sun's gravity keeps the planets orbiting.
Question 10 of 10
hard
The first humans landed on which space body in 1969?
Mars
The Moon
The Sun
Jupiter
Explanation: Humans first landed on the Moon in 1969.