Across
- 2. a fastening made by something being tied
- 4. the longitudinal line of reference
- 5. why stars twinkle
- 8. an imaginary line about which a body rotates
- 9. distorts as little as possible without slicing into them
- 10. the latitudinal line of reference
- 13. the smallest continent is
- 14. single continuous land mass that includes Europe and Asia
- 15. trade route between Africa and Asia
- 17. continent of the South pole
- 18. includes America, Mexico, and Canada
- 20. most accurate representation of the features of the Earth
- 21. a half of the Earth
- 24. formed 4.54 billion years ago
- 27. includes all countries south of equator
- 29. interstellar cloud of dust, hydrogen, helium, and other ionized gases
Down
- 1. in 1955 the UN established major
- 3. imaginary line north and south through the pacific ocean
- 6. major shipping ocean, and second largest.
- 7. looks similar to wedges by dividing the area into equal sections
- 11. ice covers 5.5% of the
- 12. a unit used in measuring distances at sea
- 16. a person who draws or produces maps
- 19. 1/10 of the earth is covered in
- 22. a very large star of high luminosity and low surface temperatures
- 23. is the smallest, also known as the Northern Sea
- 25. Earth belongs to what galaxy
- 26. pacific ocean is the
- 28. the release of a gas
- 30. ice covers 4.5% of the