- the three major forces of nature responsible for erosion
What are running water, wind, ice?
100
- the two types of glaciation
What are Alpine (or valley) and Continental?
100
- form along coastlines with bands of soft and hard rock at right angles to the coastline
What are Headlands & Bays?
100
sediments
What are little pieces of eroded rock called?
200
- when water enters a crack in a rock, then freezes, expands, and forces the rock to crack apart
What is frost shattering?
200
- the erosional force that creates rock pedestals
What is wind?
200
- continental glaciers have this general effect on the land it moves over
What type of glacier is reponsible for smoothing out the landscape as they move across it, eroding higher points and filling in lower areas?
200
- the feature created when stacks erode
What are stumps?
200
- the two spheres that weathering & erosion originate in
What are the Hydrosphere & Atmosphere ?
300
Chemical Weathering
What is the term used to describe the process that occurs when water dissolves minerals in rocks, leaving the insoluable minerals behind?
300
the process that occurs when riverbeds and banks are worn away as large rocks are dragged along by the flowing water
What is Abrasion?
300
An Erratic!
What is the term used to describe a large rock picked up by a glacier and carried a long distance before being deposited on the land?
300
- the feature formed when the roof of an arch is eroded away (by frost, wind and rain)...looks like a column standing in the middle of water
What is a stack?
300
- this type of rock is formed when magma or lava becomes cooled
What is Igneous Rock?
400
- when softer minerals in a rock erode away leaving the more resistant minerals in place
What is Differential Weathering?
400
- the process that occurs when fast-flowing river water is forced into cracks in the rock along its banks, wearing it away or forcing chunks to break off
What is Hydraulic action?
400
- grooves in bedrock that run in the direction that glaciers moved across it...the grooves are created by rocks frozen into the bottom of the glacier gouging out the rock
What are striations?
400
- the sea attacks the foot of a cliff and begins to erode weaker areas like cracks
- gradually these cracks get larger and develop into small caves
What is the process that creates caves?
400
heat & pressure
What processes create metamorphic rock?
500
The superhero in the video that represented Weathering!
What is Breaker?
500
These form when river water swirls rocks and pebbles around making deep, round holes in the riverbed. These exist about 50 km east of Wawa.
What are potholes?
500
A steep-sided ridge in between two cirques?
What is an arete?
500
This process is seen in the formation of headlands and bays because there are bands of hard and soft rock at right angles to the coastline. Due to different rates of hardness, the different types of rock erode at different rates.
What is DIFFERENTIAL EROSION?
500
the feature that is created when wind creates streamlined hills in the direction that the wind is blowing