Classes of Rocks
Sedimentary Rocks
Fossils
Ages of Time
Potpurri
100
Number of rock Classes
What are 3
100
Definition of sediments
What are rocks and particles carried away by wind or water
100
type of rock that fossils are made of
What is sedimentary rock
100
Age of the oldest rock found
What is 4.6 billion years
100
How igneous rocks become magma
What is melting
200
What are the Two things that form metamorphic rocks?
What are heat and pressure?
200
Definition of the law of superposition
What is the fact that each rock layer is older than the one on top of it
200
Definition of a fossil
What is remains and traces of an organism from long ago
200
Age the dinosaurs lived in
What is Mesozoic
200
What two things cause sediments to form
What are weathering and erosion
300
How a sedimentary rock is formed
when sediments are pushed together to form a rock
300
How sedimentary rock forms
What is in layers
300
Word that infers that a species is no longer living
What is extinct
300
Definition of relative age
What is age of one thing compared to another
300
The difference between stalactites and stalagmites
What is stalactites are on the ceiling while stalagmites are on the ground
400
How an igneous rock is formed?
When melted minerals cool and harden
400
One structure made of sedimentary rock
What is stalactite, stalagmite, or fossil
400
Hardened tree sap that fossils form in
What is amber
400
Definition of absolute age
What is the actual number age of an organism
400
The difference between magma and lava
What is magma is on the inside of a volcano while lava is on the outside of the volcano
500
An example of an Igneous Rock, Metamorphic Rock, and Sedimentary Rock
What is Igneous= Obsidian, Granite, Quartz Sedimentary= limestone, sandstone Metamorphic= slate, marble
500
Four fossil examples
What are bones, skeletons, imprints, shells, and ancient bodies
500
The four ages of time
What are Cenozoic, Mesozoic, Paleozoic, and Precambrian
500
The four layers of the earth
What are the crust, mantle, outer core and inner core
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