Titan and Nereid
Triton and Nereid
Titania and Nereid

2) Which planet is the farthest planet from the Sun ?

always Pluto
always Neptune
most of the time Pluto, sometimes Neptune
most of the time Neptune, sometimes Pluto

3) Pick the true statement:

The planet Neptune is one of the smallest planets.
The planet Neptune is one of the larger planets.

4) Voyager 2 discovered all of Neptune's moons.

True
False

5) Pick the true statement:

Neptune is made of 99% gas.
Neptune consists mostly of solid rock.
Johann Gottfried Galle did not discover Neptune.
Neptune has a small solid rocky center, an ocean of water and hydrogen and helium in its atmosphere

6) Who predicted the existence of the planet Neptune ?

John Couch Adams and Urbain Jean Joseph Leverrier
Nicolaus Copernicus and Johannes Kepler
Tycho Brahe and Cassini

7) Which spacecraft took pictures of Neptune's surface ?

Apollo 2
Mariner 2
Voyager 2
None of these spacecrafts went to the planet Neptune.

8) Pick the correct statement:

Water gives Neptune its blue cloud color.
Helium gives Neptune its blue cloud color.
Methane gives Neptune its blue cloud color.

9) Neptune consists mostly of gas therefore it has no magnetic field at all.

Correct
Incorrect

10) Which statement is correct?

The planet Neptune is closer to the sun than Uranus.
The planet Neptune is smaller than Pluto.
You need a telescope to see the planet Neptune.
There are no rings around Neptune.