Erosion
What is erosion?
Erosion is the geological process in which natural forces—specifically water, wind, ice, or gravity—wear away soil, rock, and dissolved material from one location on the Earth’s crust and transport it to another.
What is flooding?
flooding is a when a normally dry area is covered in water.
What is land movement?
land movement refers to any way the ground beneath our feet shifts, slides, or rearranges itself
What is deposition?
Deposition is the natural process where wind, water, or ice drops pieces of rock, sand, and soil (called sediment) in new locations, building up the land.
What is an example of cause and effect?
For example, tectonic plates colliding (cause) creates mountains (effect), while rivers eroding rock (cause) forms canyons (effect).
Does erosion happen quickly or slowly?
Erosion can happen both slowly and quickly, depending on the forces involved, the material being eroded, and environmental conditions. While it is generally a gradual process that shapes the landscape over thousands or millions of years, it can also occur rapidly during extreme events.
Does flooding happen quickly or slowly?
quickly
Does land movement happen at a fast or slow pace?
It can be very slow (like the movement of continents over millions of years) or very fast (like a landslide).
What is sediment?
rock fragments, minerals, organic remains, soil
Describe cause and effect?
cause and effect explains how Earth’s processes change the landscape. A "cause" is the action (like moving plates or rushing water), and the "effect" is the result (like mountains or canyons)
What causes slow erosion (Gradual Changes)?
Constant, low-intensity forces like steady wind, gentle rain, or the slow freeze-thaw cycle of water in rock cracks (frost wedging).
How long does it usually take for flash flooding to occur?
within 6 hours of the rain event.
What is an example of land movement happening at a slow pace?
movement of continents over millions of years
What is an example of deposition?
a river delta, where a river slows upon entering the ocean, dropping sediment to build new land
True or false: this is an example of cause and effect?
Weathering/Erosion and Shaped Landscape
True
What is the timeframe for slow erosion?
What happens to the water from floods?
Floodwaters, after causing damage, primarily recede by flowing back into rivers, streams, and oceans, often taking days or weeks. Excess water also replenishes underground aquifers, evaporates into the atmosphere, or is absorbed by saturated soil and vegetation, while urban runoff enters wastewater systems.
What is an example of land movement happening at a fast pace?
landslide, heavy rain, earthquakes, or volcanic activity, acting in minutes or second
Can you see deposition occurring?
Identify the cause and the effect?
Rock transformation
Heat and Pressure
Heat & Pressure (Cause)
Rock Transformation (Effect)