Water seeps into cracks in rocks and freezes, then it expands and breaks apart the rock.
What is how ice causes weathering?
100
Physical weathering doesn't change the rock, chemical weathering does change the rocks by forming new materials
What is the difference between physical and chemical weathering?
100
washes away rock sediments
What is erosion caused by water?
100
Rapid vs. Slow: chemical weathering
What is an earth change that happen slowly?
100
A delta forms when a river pours into a larger body of water and earth materials are deposited over a _______ area. The ___________ particles settle ______________.
What is wide, larger, and first?
200
Sediments from rocks grind against each other (wind blows sand against rocks, rocks roll down hillsides)
What is how abrasion causes physical weathering?
200
Plants and plant roots can produce this which will dissolve rocks.
What is acid?
200
blows rock sediments away
What is erosion caused by wind?
200
Rapid vs. Slow: landslides and flash floods
What are earth changes that happen rapidly?
200
water moves ____________and materials settle out ___________ when the slope is steep.
What is faster and farther?
300
Roots from plants break up rocks
What is how plant roots cause physical weathering?
300
air and water combine attacking metals causing this
What is oxidation? (rust)
300
pulls rock towards the earth
What is erosion caused by gravity?
300
Rapid vs. Slow: freezing water and tree roots
What are earth changes that happen slowly?
300
earth materials deposit farther down stream, earth materials at top erode faster and form a canyon.
What are results you would expect from a stream table model with flood conditions?
400
breaking down of rocks into smaller pieces
What is physical weathering?
400
rocks are weathered and changed into a new material
What is chemical weathering?
400
erosion
What is the moving of rock?
400
Rapid vs. Slow: volcanic eruptions
What is an earth change that happen rapidly?
400
Smaller version, able to predict results, sand and clay represent earth
What are ways that stream tables model what happens during a flood?
500
Physically weathering rocks change the materials in a rock. (T or F)
What is false?
500
water droplets and chemicals in the air mix to form this
What is acid rain?
500
after weathered rocks move (erosion) this is how sediments end up in their resting place.