13. Well, almost . . .
In the last few years
scientists have been
arguing about whether to
call some new planet-like
objects actual planets in
our solar system. So we’ll
see!
15. The largest planet in our solar
system is
A: Jupiter
B: Earth
C: Uranus
D: Saturn
16. Which of the following describes
the sun?
A: a hot star
B: a huge planet
C: an asteroid
D: a small planet
17. Mercury is
A: hot because it is the planet
closest to the sun.
B: cool because it moves quickly.
C: the largest planet.
D: the smallest planet.
18. Venus is
A: hot because it is the planet
closest to the sun.
B: the brightest planet as we see
it in our sky.
C: the largest planet.
D: the smallest planet.
19. Earth is
A: larger than Mercury but
smaller than Jupiter.
B: larger than Jupiter but smaller
than Mercury.
C: the largest planet.
D: the smallest planet.