1) What is a type of mechanical weathering where rocks rub against each other? a) abrasion b) frost heaving c) wedging 2) the action of wind blowing and picking up loose sediment. a) abrasion b) deflation c) deposition 3) large, unbroken, and unweathered rock under subsoil (regolith) a) rock flour b) bedrock c) delta 4) The area at the mouth of a river where sediment is deposited. a) delta b) deposition c) deflation 5) The dropping of sediment and rocks in a new location by gravity, wind, water, or ice. a) deposition b) deflation c) abrasion 6) the moving o bits of weathered material from one place to another. a) deposition b) weathering c) erosion 7) an area that commonly floods a) floodplain b) delta c) weathering 8) the pull of one object on another a) deposition b) gravity c) delta 9) the sediment that a stream carries a) load b) loam c) bedrock 10) When oxygen in the air combines with what rock is made of to form new compounds that can weaken the rock. a) cabonic acid b) oxidation c) deflation 11) a scientist that studies soil a) meteorologist b) soilologist c) pedologist 12) fine grained silt sized particles of rock, generated by mechanical grinding of bedrock by glacial erosion. a) rock flour b) bedrock c) subsoil 13) People who enjoy exploring caves a) spelunker b) pedologist c) meteorologist 14) the process of breaking down rocks a) weathering b) erosion c) deposition 15) What is the main cause of erosion? a) gravity b) water c) ice 16) What is soil creep? a) gravit pulls at rocks and sediment on the sides of hills and mountains, a piece of rock might break off. b) gravity slowly pulls soil down the slope of a hill. c) when water combines with soil a mass movement occurs. 17) What are the four agents of erosion? a) gravity b) water c) wind d) ice e) mud f) grass 18) What are the three types of rocks? a) sedimentary b) igneous c) granite d) metamorphic e) lava f) magma 19) What causes depositions to have a layered look? a) sedimentary rock happens b) heavier items go to the bottom, lighter objects at the top c) wind blows it around 20) Why does the Mississippi delta (birdfoot delta) look different from the Nile delta a) There is sediment added each year from erosion off farmland. b) There are heavy winds. c) It is shaped like a circle. 21) Who is in control of what happens on earth? a) meteorologist b) God c) pedologist 22) What forms when rain passes through soil and absorbs carbon dioxide forming carbonic acid which helps dissolving underlying rock. These may drip down in caves. a) deposition b) speleothems c) erosion 23) This mass movement involves gravity slowly pulling soil down the hill. This sometimes makes trees go at an angle. a) earth flow b) soil creep c) mudflow d) avalanche e) rockslides 24) As gravity pulls at rocks and sediment on the sides of hills and mountains. The pile of soil and rocks at hte bottom of an incline. a) earth flow b) soil creep c) mudflow d) avalanche e) rockslides 25) huge slabs of rock break off along cracks and faults. a) earth flow b) soil creep c) mudflow d) avalanche e) rockslides 26) A mass of snow along a mountain becomes unstable. a) earth flow b) soil creep c) mudflow d) avalanche e) rockslides 27) A mass movement when soil combines with water. a) earth flow b) soil creep c) mudflow d) avalanche e) rockslides 28) What is the difference between weathering and erosion? a) weathering is stronger b) weathering is breaking down of rocks, erosion is moving the rocks c) weathering happens after erosion 29) What is the difference between mechanical and chemical weathering? a) mechanical weathering breaks down rocks into smaller pieces, chemical weathering breaks down rocks by forming new minerals. b) Mechanical weathering happens more. c) Chemical weathering happens more. 30) Water in the rock freezes and forces a rock apart( mechanical weathering) a) abrasion b) exfoliation c) frost wedging d) frost heaving e) pressure release 31) When water gets underneath a rock the water freezes and expands (mechanical weathering) a) abrasion b) exfoliation c) frost wedging d) frost heaving e) pressure release 32) mechanical weathering that happens when rocks rub against each other. a) abrasion b) exfoliation c) frost wedging d) frost heaving e) pressure release 33) A shift in the ground around them can reduce pressure and cause the rocks to expand rapidly. (mechanical weathering) a) abrasion b) exfoliation c) frost wedging d) frost heaving e) pressure release 34) What type of chemical weathering occurs when rain carries chemicals from the air onto surfaces below. a) acid rain b) carbonic acid c) lichens d) oxidation 35) What is like moss that grows on rocks producing chemicals in weathering a) acid rain b) carbonic acid c) lichens d) oxidation 36) Which acid is produced when carbon dioxide dissolves in water (chemical weathering) a) carbonic acid b) acid rain c) lichens

chapter 2 science

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