Venus

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Across
  1. 5. who discovered Venus?
  2. 8. what is Venus's middle layer?
  3. 9. What causes Venus to be so hot?
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  1. 1. Venus has a iron core but not a...?
  2. 2. what is the hottest Venus has gotten?
  3. 3. How long is a day on Venus?
  4. 4. Who is Venus named after?
  5. 6. how many moons does Venus have?
  6. 7. This planet is Venus's twin?
  7. 9. how many sunrises does Venus have each year?