Transcript Warm Up #5 What happens to a metal mailbox after many years of

Warm Up #5
▪ What happens to a metal mailbox after many years of being outside
in every kind of weather?
Lesson 3: Weathering,
Erosion, and Deposition
Essential Questions
▪ How are weathering and soil formation related?
▪ How do weathering, erosion, and deposition change Earth’s surface?
▪ How are erosion and deposition related?
Weathering
▪ What’s the difference between weathering and erosion?
Weathering
▪ What’s the difference between weathering and erosion?
▪ Weathering – the processes that break down rocks, changing Earth’s surface
over time
▪ Erosion – the moving of weathered material, or sediment, from one location to
another
▪ Physical weathering – the process of breaking rock into small pieces
without changing the composition of the rock
▪ What is frost wedging?
▪ How can plants cause physical weathering?
Weathering
▪ What’s the difference between weathering and erosion?
▪ Weathering – the processes that break down rocks, changing Earth’s surface over
time
▪ Erosion – the moving of weathered material, or sediment, from one location to
another
▪ Physical weathering – the process of breaking rock into small pieces
without changing the composition of the rock
▪ What is frost wedging?
▪ Water in rocks that freezes and melts repeatedly, eventually breaking the rock
▪ How can plants cause physical weathering?
▪ Roots of plants grow in cracks and as it grows it takes up more space causing the
rock to break
Weathering
▪ Chemical weathering – process of changing the composition of rocks
and minerals by exposure to water and the atmosphere
▪ How do gases and temperatures affect chemical weathering?
▪ How does weathering change Earth’s surface?
▪ How do chemical and physical weathering work together?
Weathering
▪ Chemical weathering – process of changing the composition of rocks
and minerals by exposure to water and the atmosphere
▪ How do gases and temperatures affect chemical weathering?
▪ How does weathering change Earth’s surface?
▪ Wears away, breaks apart, or changes the appearance of rocks, changing the
landforms on Earth’s surface
▪ How do chemical and physical weathering work together?
Soil formation
▪ Soil – consists of weathered rock, mineral material, water, air, and
organic matter from the remains of organisms
▪ What affects soil formation?
Soil formation
▪ Soil – consists of weathered rock, mineral material, water, air, and
organic matter from the remains of organisms
▪ What affects soil formation?
▪ Rock type being weathered, biological activity, and the climate
▪ http://connected.mcgrawhill.com/secure/V2MZ3RMS8WJ57SMRQ6BN8SL054
Warm Up #6
▪ What causes the deposition of sediment?
Erosion/Deposition Activity
▪ Within your group discuss how each of these places formed.
Erosion
▪ Sediment – minerals and small pieces of rock
▪ How does water transport sediment from one place to another?
▪ How does ice transport sediment from one place to another?
▪ How does wind transport sediment from one place to another?
Erosion
▪ Sediment – minerals and small pieces of rock
▪ How does water transport sediment from one place to
another?
▪ Water picks up rock pieces and sediments, which scrape along the
ground
▪ How does ice transport sediment from one place to another?
▪ Removes rocks and sediment next to its bottom and sides, which form a
smoothed land surface underneath the ice
▪ How does wind transport sediment from one place to another?
▪ Picks up rocks and soil, which will hit others to erode it
Deposition – the process of laying down
eroded material in a new location
▪ How does water perform deposition?
▪ Carry sediment from one place to another unless not fast enough,
which cause it to settle at the bottom of the water
▪ How does ice perform deposition?
▪ When ice melts is moves sediment
▪ Moraines - glacial deposits of sediment
▪ How does wind perform deposition?
▪ Picks up sediment and moves it around
Erosion-Deposition Cycle
▪ How are erosion and deposition related?
Erosion-Deposition Cycle
▪ How are erosion and deposition related?
▪ Sediment is transported through erosion and is deposited in areas through
deposition
▪ How does a sedimentary rock pass through the erosion-deposition
cycle and become a sedimentary rock once again?
Erosion-Deposition Cycle
▪ How are erosion and deposition related?
▪ Sediment is transported through erosion and is deposited in areas through
deposition
▪ How does a sedimentary rock pass through the erosion-deposition
cycle and become a sedimentary rock once again?
▪ Rock is weathered into sediment, eroded, and deposited. Over time, the
sediment becomes compacted and cemented together, forming sedimentary
rock once again.