Unit 1 Astronomy
Across
- 2. The amount of matter an object has
- 4. A force that pulls objects(planets)towards each other
- 8. Italian astronomer who supported Heliocentric theory using a telescope
- 9. Astronomer who supported Geocentric theory using Math
- 10. Pieces of metallic space rock burning through Earth’s atmosphere creating a streak of light through the sky
- 12. Earth centered theory
- 14. Space rocks that orbit the SUN
- 15. Polish astronomer who proposed Heliocentric Theory
- 17. The revolution of the Moon around the Earth causes the Moon to appear to have
- 18. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun
- 20. The tendency of an object(planet) to remain at rest or continue in a straight path
- 21. Earth SPINNING on an imaginary(axis)creating day/night(24hrs)
Down
- 1. A collection of stars, dust, gas, and dark matter
- 3. Sun centered theory
- 5. Most commonly accepted theory today on the formation of the universe
- 6. Greek astronomer who proposed Geocentric Theory
- 7. The sun is directly over the equator
- 11. Edwin Hubble's theory that the universe is always expanding
- 13. An explanation or model backed by results obtained from many tests or experiments
- 16. Earth's COMPLETE orbit around the sun creating 1 year
- 19. The position of the sun is close to one of the POLES