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Across 1. Release 5. The rate at which a physical quantity, such as temperature or pressure, increases or decreases relative to change in a given variable, especially distance. 7. The wearing away of rock material by grinding action 8. One of the features that make up the earth's surface, such as a plain, mountain, or valley. 9. Water or snow gets in a crack and has nowhere to go but it has to go some where so it expands and the crack gets larger! And soon after that crack expands enough that the piece of land falls off (2 Words) 10. The removal and transport of materials by natural agents such as wind and running water 12. A ridge or swell moving through or along the surface of a large body of water. 13. A valley having a cross-sectional profile in the form of the letter V, commonly produced by stream erosion. (2 Words) 15. The breakdown or decomposition of rock that takes place when minerals are changed different substances. (2 Words) 18. One of the chief agents of erosion (2 Words) 19. Respond or behave in a particular way(in this case to acid) 20. A huge mass of ice slowly flowing over a land mass, formed from compacted snow in an area where snow accumulation exceeds melting and sublimation. 21. The natural force of attraction exerted by a celestial body, such as Earth, upon objects at or near its surface, tending to draw them toward the center of the body. 22. Moving air, especially a na movement otural and perceptiblef air parallel to or along the ground. 23. The things that make erosion possible. In other words, these are the things that transport the sediments from one place to another(provide the general name and not examples) (3 Words)

Down 2. The drainage patterns formed by the system of streams in an area as they flow down slopes and join with other streams (3 Words) 3. Shape of the bed of a stream or river. (2 Words) 4. Water may get into a crack in a rock and freeze. As the water turns into ice it expands and causes the crack to open a little. When it thaws the ice melts and changes back to water. 6. Processes that break down rock without changing the rock's chemical composition (2 Words) 11. Describes how a solid would become mixed in a cup of water if it's dropped 14. All the land that drains into the river either directly or through its tributaries 16. a:To follow a winding and turning course or b:Circuitous windings or sinuosities, as of a stream or path. 17. The breakup of rock due to exposure to processes that occur at or near Earth's surface