Across
- 3. ___and cosmig egg
- 4. was formed by a solid metal core, a liquid mantleand a tjjis but hard crust
- 7. North American cultures belived in this theory
- 9. is aproximately 4.5 billon years ago
- 10. Japanese and cgeroki cultures belived in this theory
Down
- 1. ______billon years ago
- 2. to the routine of the solar sistem through dust and gases
- 5. Egyptians and Nordic cultures
- 6. Scientific theory
- 8. the galaxy we live in is called the______