Energy
Sedimantary Rocks
Relative Dating
Geologic Time Scale
Fossils
100
What is Elastic potential energy?
Energy stored in objects that shrink or stretch
100
What are the 3 types of sedimentary rocks?
Clastic, Organic, and Chemical
100
Whats the principle of superposition?
undisturbed rocks, oldest rocks are on the bottom and youngest are on the top
100
Earths history id divide into____ units of time.
4 eons, era, periodsd, and epochs
100
define fossil
An impression, cast, original material, or track of an organism thast been preserved more than +10,000 years old
200
What is kinetic energy? Potential?
Kinetic- Energy a moving object has due to its motion Potential- Energy stored in a object
200
How do sedimentary rocks form?
When sediment is compacted and cemented
200
if metamorphic rock is present in layers, with sediment rocks which on is older?
metamorphic rocks take a long to to form
200
how long is an eon?
measured in billions of years.
200
What will have a better chance of fossilizing, something hard or soft?
something hard.
300
Whats the formula for gravitational Potential Energy?
Mass*Gravity*Height=Gravitational Potential Energy
300
Grain size determines....
Texture coarse- larger than pebbles Medium- granulated sugar Fine- grains to small to see crystalline- no grains
300
whats the principle of crosscutting relationships?
faults and igneous intrusions are younger than the rock they intrude
300
What the meaning of cenozoic, mesozoic, and paleozoic?
cenozoic- recent life mesozoic- middle life paleozoic- old life
300
What percent of animals become fossils?
less than 10%
400
Whats the Formula for kinetic energy
KE=1/2*MV^2
400
What rock fizzes when you put hydrochloric acid?
Organic rock, because it was made from something living which has carbon.
400
what are the 3 types pd disconformities
Unconformity, nonconformity, and an angular disconformity
400
what epoch are we in currently
the holocene
400
whats the difference between a body and trace fossil?
Body is a part of the organism, while a trace is evidence that it existed.
500
An object has a mass of 40 and hight of 17 feet, calculate is GPE
6664 J
500
What rock is coarse texture, doesn't fizz and is a clastic rock, with rounded fragments?
Conglomerate
500
if gneiss(A) gets a layer of limestone(C) on top, and extruded by granite(B). whats the oder?
A,B,C
500
name the epochs in the paleozoic period
Cambrian, ordovician, silurian, devonian, mississippi, pennsylvanian, and permian
500
how does and animal become totally preserved?
when its totally covered in snow/ice or mumified, you can still see organs, fur.
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