Solar System Quiz

1 - How many billions of years ago was Mars formed?

a) 4 billion

b) 4.5 billion

c) 5 billion

d) 5.5 billion

2 - Which planet in the Solar System has the largest ocean? 

a) Earth 

b) Jupiter 

c)Neptune 

d)Uranus

3 - In what year was Neptune discovered? 

a) 1759 

b) 1849 

c) 1846 

d) 1990

4 - What is the name of the largest moon in the Solar System? 

a) Ganymede 

b) Io 

c) Europa 

d) Callisto

5 - How long does it take for light to get from the Sun to Pluto? 

a) 5.5 hours 

b) 7 hours 

c) 10 hours 

d) 4 hours

6 - What are the names of Mars' moons? 

a) Arcas and Iasus 

b) Phobos and Deimos 

c) Pollux and Orion 

d) Tityos and Clymene

7 - In what year was Pluto reclassified as a ‘dwarf planet'? 

a) 2004 

b) 2005 

c) 2006 

d) 2007

ANSWERS:

1 - B. 

Mars was formed 4.5 billion years ago.

2 - B. 

The largest ocean, which is made of hydrogen instead of water, is found on Jupiter.

3 - B.

Neptune was discovered in 1846 by Johann Galle.

4 - A.

Ganymede, a moon of Jupiter, is the largest in the Solar System.

5 - A

It takes light from the Sun five and a half hours to reach Pluto.

6 - B.

The names of Mars' moons are Phobos and Deimos. In ancient Greek mythology, Phobos and Deimos are also the names of the children of the god of war.

7 - C.

It was in 2006 when Pluto was reclassified as a ‘dwarf planet'.