Across
- 2. projection a map made by projecting points and lines from a globe onto a cone
- 3. Date Line the 180 degree longitude, serves as the transition line for calendar days
- 7. meridian reference point for longitude, represented by 0 degrees longitude
- 9. the study of objects beyond Earth’s atmosphere
- 11. satellite satellite that records light (wavelengths of energy) from Earth's surface
- 13. all the water on Earth, including the water in the atmosphere
- 14. the distance in degrees north or south of the equator
- 15. sensing gathering data from above the surface
- 17. the region of permanently frozen water on Earth
- 18. the study of the materials that make up Earth, the processes study of materials that make up Earth and the processes that form and change these materials, and the history of the planet and its life-forms since its origin
- 21. imaginary line that horizontally circles Earth halfway between the North and South poles
- 22. "the study of the forces and processes that cause the atmosphere to change and produce weather
- 23. projection a map that has parallel lines of latitude and longitude (square map)
- 25. the distance in degrees east or west of the prime meridian
- 26. legend a table that explains symbols on a map
- 28. the science of mapmaking
- 29. scale ratio between map distance and actual distance
- 30. map a map used to show features beneath the soil
Down
- 1. interval the difference in elevation between two contour lines
- 4. the blanket of gases that surrounds our planet
- 5. the part of Earth from its surface to its center
- 6. projection a map made by projecting points and lines from a globe onto piece of paper that touches the globe at a single point (circular map)
- 8. use of sound waves to detect objects
- 10. object that orbits Earth
- 12. all organisms on Earth and the environments in which they live
- 16. line a line on a map that connects points of equal elevation
- 19. study of Earth's oceans, including the creatures that inhabit its waters, its physical and chemical properties, and the effects of human activities
- 20. Information System (GIS) system that combines layers to create a map
- 24. map a map that shows changes in elevation
- 27. Positioning System (GPS) satellite navigation system that allows users to find their location
