Across
- 3. a projection made by placing a paper cone along one axis of the globe
- 6. a type of system where both matter and energy is exchanged
- 7. maps that show surface features and elevation of an area
- 11. study of Earth and its neighbors
- 13. observations that include physical descriptions
- 17. a line of latitude is also called this
- 19. the line of latitude designated as 0 degrees
- 20. a global network of 24 satellites
- 21. approximately 70% of the Earth is covered by this
- 22. a well tested explanation for observable facts
Down
- 1. a map that shows they type and age of rocks
- 2. the study of the earth
- 4. lines used to show elevation on a topographic map
- 5. the variable that is changed between each group
- 8. any size group of interacting parts that form a complex whole
- 9. the town in England where the Prime Meridian passes through
- 10. map projection made in 1569 and is still the most popular today
- 12. a type of scale expressed using a ratio
- 14. study of the universe
- 15. the middle layer of the Earth
- 16. a type of system where only energy is exchanged
- 18. one of Earth’s energy sources