Across
- 4. avalanche,tornado,hurricane
- 6. study of relation of living things
- 8. space traveler
- 10. scientific knowledge
- 14. sealed glass dome with all of earth's features
- 16. people,society,civilization
- 17. stars,galaxies,planets
- 19. having to do with heat
- 20. animals,study,science
Down
- 1. star shaped mark
- 2. dial controls on a heater
- 3. means half of a sphere
- 5. rocks,minerals,earth
- 7. air that surrounds the Earth
- 9. instrument used to measure temperature
- 11. Zeus,Apollo,Athena
- 12. study of all living things
- 13. weather,forecast,barometer
- 15. Earth is a round shape
- 18. container,vacuum,hot,cold