Definition
Definition
Quetions
Quetions
Practice
100
The rock layer that lies below the soil
What is Bed Rock
100
magma that reached earths surface
What is lava
100
formed from sediments- bits of rock, parts of animal, and so on
What is sedimentary rock
100
Which is a lesser period of time, period or eon?
What is Period
100
What piece of equipment would be most useful for a scientist studying the crystals in a sample of granite?
What is Microscope
200
The complete body of fossils that shows how species and ecosystems change over time
What is Fossil Record
200
hot, melted rock below the Earth's surface
What is magma
200
You find an igneous rock. It has large crystals and a very rough texture. This rock was probably found..
What is below the surface of the earth
200
IN what era did plants appear?
What is Mesozioc
200
What type of rock do paleontologists use to study past climates?
What is Sedimentary
300
a table that divides the Earth's history into eras, periods, epochs, and so forth
What is geologic timescale
300
Forms when existing rocks are exposed to heat and pressure
What is metamorphic rock
300
Reason why Sedimentary rocks form in horizontal layers
What is Each rock is formed in different time periods
300
How many millions of years did the Cambrian period last?
What is 104
300
what type of rock is formed when heat and pressure changes but does not melt rock
What is metamorphic
400
Rock formed by the cooling of magma or lava
What is igneous rock
400
any substance extracted from the earth
What is mineral resource
400
IN what type of rock are you most likely to find a fossil
What is Sedimentary rock
400
Which periods make up the "Age of the Fishes"
What is Devonian and Silurian
400
Geologists classify rock as igneous, sedimentary, or metamorphic. On what do geologists base this system of classification?
What is the method of formation of the rocks
500
a fossil associated with a particular span of geologic time
What is index fossil
500
a continuous process in which rocks change from one type to another
What is rock cycle
500
Which is a greater time period, era or epoch?
What is ERA
500
How many millions of years ago did the Eocene epoch start?
What is 50
500
Which equipment would be most useful for comparing the densities of a sample of granite and sample of limestone?
What is Graduated cylinder and digital balance
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