True
False

2) Which planets only have one moon?

Mercury and Neptune
Planet Mars and Venus
The Earth and Pluto
Planet Pluto and Saturn

3) Which statement is correct?

Perihelion means closest in its orbit to the Moon, perigee means closest in its orbit to the Sun.
Perihelion means closest in its orbit to the Sun, perigee means closest in its orbit to the Earth.
Perihelion means closest in its orbit to the Earth, perigee means farthest in its orbit to the Sun.

4) Mercury and Venus are known as ...

interior planets
inferior planets
the Galilean planets

5) ... are closer to the Sun than Earth, ... are farther from the Sun than the Earth.

interior planets, exterior planets
inferior planets, superior planets

6) Mercury, Venus, Earth and ... are known as the inner planets.

planet Mars
planet Jupiter
planet Saturn

7) Are Saturn, Uranus, Neptune and Pluto also called the gas giants?

Yes
No

8) Pick the correct statement:

The Galilean moons are the four largest moons of Jupiter.
The Galilean moons are the four largest moons of Saturn.
The Galilean moons are all the moons of Saturn.
None of these statements are correct.

9) Does perihelion means closest and aphelion means farthest?

Yes
No

10) Pick the true statement:

When at aphelion, a planet is in its orbit which is farthest from the sun.
When at aphelion, a planet is in its orbit which is closest from the sun.