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TCAP Practice Family of Planets

Explore the reasons why scientists believe that liquid water may have once existed on Mars, including surface features, atmosphere, ice caps, and the possibility of fossils. Also, learn about the farthest-traveling body, longest occurring event, and the brightest planets in the night sky. Discover the largest celestial body among the moon, Pluto, Mercury, and Ganymede.

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TCAP Practice Family of Planets

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  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

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