Rocks & Minerals
How old is that rock
Weathering Heights
Erosion
Potpourri
100
These are what rocks are made up of.
What are minerals
100
This type of dating determines the age of rocks by comparing rock layers to one another.
What is relative
100
The type of weathering that simply breaks rock down into smaller pieces
What is physical weathering
100
This is the removal and transportation of weathered and nonweathered materials
What is erosion
100
The removal of trees for farmland that helps to expedite the erosion in that area
What is deforestation
200
This type of rock is formed on the surface when magma cools and solidifies (be specific)
What are extrusive igneous rocks
200
This method of determining the age of rocks is based on radioactive decay
What is absolute
200
The type of weathering that uses water as its key ingredient
What is chemical weathering
200
The process in which sediment moves by erosion and dropped, usually at river deltas
What is deposition
200
The area, usually at the end, of a river where sediments are deposited
What is a delta
300
This type of rock is formed from compressed or cemented sediments
What are sedimentary rocks
300
These are atoms of the same element that have differing numbers of neutrons
What are isotopes
300
This type of physical weathering causes cuts in the rocks from suspended particles being carried by wind or water
What is abrasion
300
Glaciers usually create this shape of valleys
What is U-shaped
300
The act of water seeping into cracks in rock, freezing and thawing in order to break the rock down
What is ice wedging
400
Marble is an example of this type of rock
What is metamorphic rock
400
The idea that if the area has not been disturbed, then the oldest rock will be on the bottom and the youngest on the top
What is the Principle of Superposition
400
These are formed when carbonic acid dissolves the calcite in this rock.
What are limestone caves
400
These are two types of erosion caused by gravity
What are landslides and mudslides
500
This type of rock forms large crystals because it cools slowly.
What is intrusive igneous rock
500
In radiometric dating, the number of parent isotopes are being compared to these.
What are daughter isotopes
500
Besides carbonic acid, these two types of acids come from the burning of fossil fuels to produce acid precipitation
What are sulfuric and nitric acid
500
The wind uses this effect to erode mountain sides and canyons
What is sandblasting
500
The year the Clean Air Act was past to help regulate the burning of fossil fuels.
What is 1970
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