Earth's Obit and Rotation

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Across
  1. 1. A group of stars that form a shape such as the "Big Dipper"
  2. 3. The best science teacher in Ivanhoe.
  3. 4. The action of the earth turning or spinning around its center
  4. 7. An ancient tool used to tell time during the day.
  5. 10. How many years it takes to have a leap year.
  6. 11. The model of the solar system that people thought the that Earth was the center of the solar system.
Down
  1. 2. A dark shape made when an object blocks light
  2. 5. The number of time zones on Earth.
  3. 6. The path an object follows as it moves around another object
  4. 8. A year with one additional day added.
  5. 9. An area of Earth that has a specific time that all people living there can set their clocks to.