Across
- 4. the system returns, or feeds back, information about itself, and that information results in change
- 8. a ___ is a hole sunk into the earth to reach a supply of water
- 9. the land area that supplies water to a river system
- 10. the shape of the land
- 12. water that forms in clouds and falls to Earth as rain, snow, hail, or sleet
- 14. this includes the solid metal inner core, the liquid metal outer core, and the rocky mantle and crust
- 15. in this, mapmakers determine distances and elevations using instruments and the principles of geometry
- 17. the boundary between the land and the ocean or a lake
- 19. a series of actions or operations leading toward a particular result
- 21. the relatively thin envelope of gases that forms Earth's outermost layer
- 22. the process by which water vapor becomes liquid water
- 24. a natural steam of water that flows into another body of water
- 25. a group of parts that work together as a whole
- 26. a hill of sand piled up by the wind
Down
- 1. the continuous process by which water moves from Earth's surface to the atmosphere and back again
- 2. below the saturated zone there are layers of rock that hold water and these are called ___
- 3. making a ___ of something helps you understand how things work
- 5. the ability to do work
- 6. this includes all of Earth's water, including water that cycles through the atmosphere
- 7. when sediment builds up, it makes a landform called this
- 11. features such as coastlines, dunes, and mountains
- 13. the frozen component of the hydrosphere
- 16. a landform with both high elevation and high relief
- 18. when water vapor is given off through the leaves in a process called this
- 20. the process by which molecules at the surface of a liquid absorb enough energy to change to a gas
- 23. the parts of Earth that contain all living organisms are collectively known as this