Earth Science EOC review Flashcards

Terms Definitions
protostar
baby star
schist
PR of gneiss
all colors absorbed
black
radio waves
longest waves
shortest waves
gamma waves
spectral class letters
OBAFGKM
basaltic
another name for mafic
lowest energy wave
radio wave
highest energy wave
gamma wave
earths temperature
increases with depth
direction of universe
expanding outward
refracting telescope
uses convex lenses
x waves
see through skin
types of electromagnetic radiation
RMIVUXG
mafic
darker composition with less viscosity, less explosiveness, and less silica
source of stars energy
nuclear fusion
force that holds stars together
gravity
absolute age
exact age of something
spectral class of our sun
G2
star color
related to star temperature
waves used in TVs
radio waves
age of universe
14.7 billion years
white light
all 7 colors combined
Wegener's flaws
how the continents moved
inner core elements
iron and nickel
outer core elements
iron and nickel
lithosphere
another name for the crust
fossil
living thing preserved in sediment
mountain range
form at continental-continental convergent boundaries
crust
outer layer of the Earth
most common large telescopes
reflecting telescopes
oxygen
most abundant element in Earth's crust
silicon
second most abundant element in Earth's crust
dinosaurs go extinct
65 million years ago
trench
depression formed at a subduction zone
waves used in medicine
gamma and xray
3 fossil fuels
oil, coal, natural gas
elements necessary for life
carbon, oxygen, nitrogen
how igneous rocks form
cooling of magma
global warming
increase of average atmospheric temperature
half life of Carbon 14
5730 years
micro waves
speed up atoms, detect weather
colors of visible light
ROY G BIV
crystallization
process that igneous rock is created in
radioactive decay
break down of radioactive elements into stable elements
element that most stars are made of
hydrogen
parallax
when objects appear to move because they are viewed from different locations
highest atmospheric CO2 in past 400,000 years
300 ppm
Alfred Wegener
credited with the theory of continental drift
brightness of stars
depends on size and temperature
mantle
thickest layer of the Earth, part liquid part solid where convection currents are found
how fossil fuels form
compaction of living organisms
HR Diagram
classifies stars by temperature and absolute brightness
Earths magnetic field
protects Earth from solar winds
low risk cities
cities where earthquakes and volcanoes are not likely to happen
high risk cities
cities where earthquakes and volcanoes are likely to happen
big bang theory
theory of how the universe formed
stage of life the sun is in
main sequence
convection currents
circular movement of a substance due to changes in temperature and density
plates
large pieces of earths crust that move due to convection currents
white dwarf
when small stars collapse as they die
age of fault
younger than the rock around it
age of intrusion
younger than the rock around it
inner core
very dense solid spinning layer of the Earth
sedimentary rock
rock formed from tiny pieces of other rocks or shells that have been compacted together
fault
a break in the earths crust that moves rocks
frequency
the number of waves that pass a point in an amount of time
cosmic background radiation
the radiation leftover from the big bang
stages of small star dying
giant, planetary nebula, white dwarf
law of superposition
in a body of sedimentary rocks, the oldest rocks are on the bottom
index fossil
a fossil that occured for a short time in history
time it takes for fossil fuels to form
500 million years
law or original horizontality
in a body of sedimentary rocks, the rocks formed lying horizontally
age of rocks at the Mid Ocean Ridge
age increases with distance
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