Erosion by Water
What is the process of water wearing away rock and soil over time called?
Erosion
The movement of glaciers causes erosion by ______?
Ice
What is the process by which sediment is dropped off in a new location after being transported
Deposition
What do the contour lines on a topographic map represent?
Elevation
What is a satellite image?
Answer: An image of Earth taken from space by a satellite.
What type of erosion occurs when rivers carve valleys into the landscape?
River/Water Erosion
What are are large masses of ice that move slowly over land?
Glaciers
What is the area in which rivers overflow, depositing sediment across the land creating areas prone to floods?
Floodplains
What do dashed line represent on a topographic map?
Walking Trails
What is the difference between a satellite image and an aerial image?
Satellite images are taken from space, while aerial images are taken from aircraft.
What is a landform at the mouth of a river, formed from the deposition of sediment carried by the river as it flows into a body of water.
Delta
What kind of landforms are created by wind erosion in desert regions?
Dunes
What are fine, silt-like sediments transported and deposited by wind, often forming large, fertile plains over time.
Loess
How can you identify a steep slope on a topographic map?
The contour lines are close together.
What does GPS stand for, and what does it do?
Global Positioning System, which provides location information
How do rivers contribute to the formation of canyons?
Rivers erode the rock over long periods of time, cutting deep into the landscape and creating canyons
What role does gravity play in landslides?
Gravity pulls rocks and soil downhill during landslides.
How do sand dunes form through deposition?
Wind carries and deposits sand, which builds up into mounds.
What is the contour interval on a topographic map?
The vertical distance between contour lines.
What does GIS stand for, and how is it used?
Geographic Information System, used to collect, analyze, and display geographic data.
How does the process of erosion by groundwater create features like sinkholes and underground caves?
Groundwater erodes soluble rocks
How does gravity cause erosion in mountainous areas?
Gravity pulls rock and soil downhill, causing landslides and rockfalls, which erode the landscape.
How do glaciers contribute to deposition?
As glaciers move and eventually melt, they deposit materials like rocks and sediment they picked up along the way
What is the contour index?
Every fifth line is made darker
How do satellites help scientists monitor erosion?
Satellites provide detailed images over time, allowing scientists to track changes in landforms and erosion patterns.