The three types of sedimentary rocks that we have studied are
What are sandstone, limestone and shale
100
Geologists can determine the age of rock layers by looking at these; these are species of organisms that did not live very long and their fossils are only found in one layer.
What are index fossils
100
The cooling of magma or lava will give you this type of rock
What is igneous rock
100
Exisiting rocks can be made into sedimentary rocks if this happens.
What is weathering, erosion, and deposition.
200
The transport of loose earth material is.
What is Erosion
200
Sandstone is comprised mainly of sand, which is a
What is a sediment
200
This idea states that younger rock layers will be deposited on top of older rock layers.
What is superposition
200
Igneous rocks that are formed underneath the surface of the earth are formed by cooling magma and are called this kind of igneous rock.
What is intrusive
200
You find an igneous rock that has large crystals, Did this rock cool slowly below ground or quickly above ground
What is slowly, below ground
300
When sediments settle out and stop moving it is called
What is deposition
300
Silt and clay are two types of sediments found in this type of sedimentary rock.
What is shale
300
Sedimentary rocks at the grand canyon are always deposited in what direction.
What is horizontal
300
This type of rock is formed when heat and pressure are applied to already existing rocks.
What is metamorphic rock
300
list the layers of the earth starting with the center most layer and move out.
What is the inner core, the outer core, the mantle and the lithospheric crust.
400
The four vehicles for erosion
What are water, wind, ice, and gravity.
400
Frost wedging in one type of this kind of weathering.
What is physical weathering
400
This is the largest unit of geological time
What is an eon
400
If you apply too much heat and pressure to rocks you will skip the metamorphic stage and create this __________ which will eventually cool into this_____________
What is magma, ingneous
400
Explain how a sedimentary rock can become a metamorphic rock
What is through heat and pressure
500
Oxidations and hydrolysis are both types of this kind of weathering.
What is chemical
500
Carbon Dioxide from marine animals interacts with calcium in the water to form this mineral, which holds limestone together.
What is Calcite or calcium carbonate
500
An era is based on the geological history of organisms that lived during that time. A period is based of this.
What is the rocks that were forming.
500
When lava flows out of a volcano, it will cool to create this type of igneous rock.
What is extrusive
500
List two peices of evidence that supports the theory of an asteroid hitting earth and ending the age of the dinosaurs.
What is a layer of irridum, a large crater, dinosaur fossils do not appear above the KT boundry