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