Rock
Vocab
Earth History
Scientists
Grand Canyon
100
Igneous, Sedimentary, Metamorphic
What is the three types of rocks
100
Correlation
What is the connection between two different rock formations
100
4.5 billion years
What is how old earth is
100
Believed earth was slowly cooling down
Who is Kelvin
100
10,000,000 years old
What is how old the Grand Canyon is
200
Molten rock that cools and hardens
What is how Igneous rock forms
200
Differential Erosion
What is rock that wears away leaving knobs and cliffs of hard rocks
200
Amount of layers in the earth
What is four layers
200
Believed continents drifted together
Who is Wegener
200
1.7 billion years old
What is the layers age
300
Rock that gets compacted and cemented together
What is how Sedimentary rock forms
300
Index Fossil
What is a fossil that lived for a short period many places around the world
300
The hottest layer of the earth
What is the inner core
300
looking for the strength of meteor showers
Who is Alvaraz
300
Eroded through many layers
What is the Colorado river
400
Rock that changes due to heat and/or pressure
What is how metamorphic forms
400
Erosion
What is the removal and transportation of loose earth material
400
The layer names
What is the crust, mantle, outer core, inner core
400
Found age of earth by radiation
Who is Holmes
400
Different color layers
What is their different rock
500
The difference between the three different types of rock
What is how they form
500
Deposition
What is the settling out of eroded earth material
500
25,000 miles
What is how many miles earth is around
500
They all discovered something new about the earth
What is the scientists
500
The Colorado plateu
What is where the Grand Canyon is located
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