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?

• Surface features on mars suggest erosion and
  deposition by water.
• Mars had an atmosphere that contained clouds.
• Mars had two polar icecaps that contain frozen
  carbon dioxide.
• 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?

• the planet mars
• the asteroid Vesta
• the moon titan
• the dwarf planet Pluto

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

• earth orbits the sun once
• the moon orbits earth twice
• earth rotates on its axis five times
• 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.

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

6
Of the following, which is the largest body?

• the moon
• Pluto
• Mercury
• Ganymede