Across
- 3. the study of Earth's oceans
- 6. a satellite navigation system that allows users to locate their approximate position on Earth
- 7. the distance in degrees east or west of the prime meridian
- 9. uses a database of information gathered by scientists, professionals, and students from around the world to create layers of information that can be placed on top of the other to create a comprehensive map
- 14. lines on a map running parallel to the equator
- 16. the difference in elevation between two side-by-side contour lines
- 18. contour lines with hachures to represent areas of lower elevation that surrounding areas
- 19. the use of sound waves to detect and measure objects underwater
- 20. shows changes in elevation of Earth's surface; uses lines, symbols, and colors to represent changes in elevation & features on Earth's surface
- 21. the study of materials that make up Earth, the processes that form and change these materials, and the history of the planet and its life-forms since its origin
- 22. the application of scientific discoveries
- 27. serves as the transition line for calendar days; the 180 degree meridian that runs through the Pacific Ocean
- 30. the area from the surface of Earth down to its center; divided into 3 main parts - crust, mantle, and core
- 31. all the water on Earth, including the water in the atmosphere
- 32. explains what map symbols represent
- 33. the study of interactions among organisms and their surroundings
Down
- 1. includes all organisms on Earth and the environments in which they live
- 2. record reflected wavelengths of energy from Earth's surface
- 4. the study of objects beyond Earth's atmosphere
- 5. represents 0 degrees longitude
- 8. used to show the distribution, arrangement, and type of rocks located below the soil
- 10. contour lines that are marked by numbers to represent their elevations
- 11. made by projecting points and lines from a globe onto a piece of paper that touches the globe at a single point
- 12. the study of forces and processes that cause the atmosphere to change and produce weather
- 13. made by projecting points and lines from a globe onto a paper cone
- 15. the region of permanently frozen water on Earth
- 17. a map that has parallel lines of latitude and longitude
- 23. the science of mapmaking
- 24. connects points of equal elevation on topographic maps
- 25. the process of gathering data about Earth using instruments mounted on satellites, airplanes, or ships
- 26. the blanket of gases that surrounds Earth
- 28. horizontally circles Earth halfway between the North and South Poles
- 29. the ratio between distances on a map and actual distances on the surface of the Earth