Across
- 3. streak of light produced when a meteoroid breaks up in Earth's atmosphere, pg 14
- 4. an object that orbits the sun, pg 13
- 6. Greek meaning of the word planet, pg 17
- 8. number of planets in our solar system, pg 13
- 9. orbital shape of each planet, oval, pg 19
- 12. body that orbits a planet, pg 13
- 14. Greek for "sun", pg 19
- 15. cold mixture of dust and ice approaching the sun, pg 14
- 18. made using the five senses, pg 13
- 19. Greek philosopher who proposed Earth in the center of the universe, pg 18
- 21. pattern or group of stars forming an image in the sky, pg 15
- 22. Italian scientist who discovered the moons of Jupiter, pg 19
Down
- 1. has component of stars, pg 13
- 2. giant ball of superheated gas, pg 13
- 5. one word and a letter, name of early astronomer born in 476 CE, pg 13
- 7. model of solar system with Sun in the center of solar system, pg 19
- 10. model of solar system with Earth in the middle, pg 18
- 11. planet with phases similar to moon, pg 20
- 13. the apparent movement of stars from East to West, caused by Earth's ________, pg 16
- 16. constellation found in the east in winter, west in spring, pg 16
- 17. gas component of stars, pg 13
- 20. Greek astronomer who proposed epicycles for geocentric model, pg 18