TCAP Practice Family of Planets

1
TCAP Practice Family of Planets

• 6th grade Science

2
Why do scientists think that liquid water may
have once existed on Mars?

1. Surface features on mars suggest erosion and
   deposition by water.
2. Mars had an atmosphere that contained clouds.
3. Mars had two polar icecaps that contain frozen
   carbon dioxide.
4. fossils of marine organisms have been discovered
   on the surface of mars.

3
Which of the following would travel the farthest
during one revolution around the sun?

1. the planet mars
2. the asteroid Vesta
3. the moon titan
4. the dwarf planet Pluto

4
Which of the following events takes the longest
period of time to occur?

1. earth orbits the sun once
2. the moon orbits earth twice
3. earth rotates on its axis five times
4. the moon rotates on its axis two times

5
Venus and Jupiter are typically the brightest
planets in the night sky. Venus is much smaller
than Jupiter, but its similar in brightest
because.

1. it is closer to Earth than Jupiter is.
2. it is the closest planet to the sun.
3. it produces more energy than Jupiter.
4. it has a larger solid surface than Jupiter.

6
Of the following, which is the largest body?

1. the moon
2. Pluto
3. Mercury
4. Ganymede