1. What is the average distance between the Earth's orbit and Venus's orbit? Show or tell the strategy you used to find your answer.
  2. Jacob said that the diameters of Mars and Mercury together are about the same as the diameter of Venus. Do you agree with Jacob? Explain.
  3. Maria said that the distance between Saturn's orbit and Jupiter's orbit is about 600,000,000 miles. Do you agree with Maria's estimate? Why or why not?
    1. If you could line up the diameters of four Earths, how many miles long would that line-up be?
    2. Is the diameter of Uranus more or less than 4 diameters of Earth? How did you decide?
    3. Irma decided that the diameter of Jupiter was equal to about 11 diameters of Earth. Do you agree? Why or why not.
  4. There is a giant red spot on Jupiter that is estimated to be the size of 2 Earths. About how big is the diameter of the giant red spot?
  5. John said that Saturn is 891,000,000 miles from the sun and that Uranus is about twice that distance from the sun. Do you agree with John? Why or why not?
  6. It takes Earth 365 days, or 1 year, to travel in an orbit (revolve) around the sun. About how many more Earth days does it take Jupiter to revolve around the sun? Show or tell the strategy you used to find your solution.
  7. Nila decided it takes a little more than two Earth years for Mars to revolve around the sun. Do you agree with her answer? Why or why not?
  8. Romesh said that Uranus orbits around the sun about 2 times for each one orbit of Neptune. Show or tell how he decided.
  9. Frank said that the distance between Earth and Jupiter is about the same as the distance between Jupiter and Saturn. Do you agree with Frank? Why or why not?