use the term in a sentence
weathering
creep
weathering is a mechanical or chemical surface process that breaks rocks into smaller pieces
the process where sediments move downhill slowly is called creep
if a stream slows down deposition
increases
till
ice
do stream erosion and glacial erosion form the same kind of valley?explain.
no, streams erode rock forming V shaped valleys glaciers form U shaped valleys
runoff
mass movement
water that flows over earths surface is called runoff
when gravity causes rock or sediment to move down a slope it is called mass movement
mechanical weathering
slump
mechanical weathering breaks rocks into smaller pieces without changing them chemically
a slump occurs when a mass of a rock or sediment moves downhill leaving a curved scar
mass movement is caused by...
abrasion is not an example of...
gravity
mass movement
sand bar
sand dune
water
wind
compare and contrast weathering and erosion
erosion is the wearing away or removal of rock or sediment, weathering is a mechanical or chemical process that breaks rocks into smaller pieces. both are ways earth is broken down
which 2 pertain to chemical weathering
oxygen in the air combines with mineral in the rock to form a red material
acid rain destroys the features on the face of a statue
chemical weathering
streams
chemical weathering occurs when the chemical composition of a rock changes
streams are the most important agent of erosion
chemical weathering is fastest in a _____ climate
hot-wet
loess
gully
wind
water
how does a glacier form
a glacier forms when snow accumulates to form a large mass of ice
a. a gopher burrows into the soil
b. a birdbath filled with water freezes and cracks
c. a rock ledge with a tree growing out of its cracks
a. the gopher is breaking down the sediment
b. the freezing is the force
c. the roots are breaking apart the rocks
soil
glacier
soil is a mixture of weathered rock, organic material, water, and air
a glacier is snow that never melts and becomes ice and causes erosion
soil forms rapidly in a ____ climate
rich soil is often found under...
tropical
grassy lands
cirque
slump
ice
gravity
explain how climate effects the formation of soil
if rock weathers quickly deep soils develop quickly in warm moist climates
a. which way is the sand dune moving
b. which way is the wind moving
c. how do you know the direction of the wind
a. east
b. west to east
c. the sediment is deposited on the east side
abrasion
deflation
abrasion can make pits in rocks and produce smooth polished surfaces
deflation is erosion of land by wind
cirques are caused by...
glaciers
rock slide
delta
gravity
water
trace rainfall as it travels to a lake include the terms: rill, stream, gully, and runoff
rain gathers and becomes runoff goes into a rill collects in gullies goes into a stream and empties into a lake
describe how mechanical, chemical, and biological factors work together to increase the weathering of a rock
mechanical breaks rocks down into smaller pieces chemical changes the chemical composition of a rock and plants and animals break apart the rock