ALL ABOUT SCIENCE Flashcards
layers of the earth
crust
outer core
inner core
upper mantle
lower mantle
the outer layer of the earth
crust
a thin layer of crust that overlies the ocean basis
oceanic crust
layers of rock which froms the continents
continental crust
2 types of the earths crust
oceanic and continental crust
is layered with a lithosphere and a dense metallic core
earth
the outermost and the thinnest layer of the earth
crust
composed of plates on which the continents and oceans rest
crust
solid but capable of flow and also the thickest layer of the earth
Mantle
70% of the earths mass
mantle
molten (liquid) metal beneath the mantle. composed of the melted metals nickel and iron
outercore
solid sphere composed mostly of iron
inner core
where do we find the magnetic field?
outer core
solid ball made mostly of solid iron and nickel
inner core
rocky surface layer of earth
crust
made of molten rocks that flow like liquid
outer core
made of molten iron and nickel
mantle
causes the crust to move
Mantle convection
changes the direction of the compass based on the movement of different materials and inner core
magnetic reversal
what is produced when a fault suddenly moves?
earthquake
What carries energy from an earthquake away from the focus, through the Earth’s interior and across the surface?
seismic waves
Waves which travel through the earth’s surface are called
surface waves
energy released by the earthquake travels in all directions from the focus
seismic waves
travelling through the interior of the earth
body waves
types of seismic waves
surface waves
body waves
twotypes of body waves
primary and secondary waves
also stands shear or shake waves
s-waves or secondary waves
a longitudinal wave or compressional waves due to particle compression during their transport
primary waves or p-waves
also stands for push and pull waves
primary waves or p-waves
they are transverse waves shake particles at right angles to the waves direction of travel
secondary waves
travelling only to the crust
`surace waves
this wave is similar to how waves prpagate the waves are descriptively called ground roll
rayleigh waves
2 types of surface waves
love waves and rayleigh waves
named after A.E.H Love
love waves
this wave is somewhat similar to s-waves, travel by a transverse motion of particles that is parallel to the ground surface
love waves
rayleigh waves was named after who?
Lord Rayleigh
is the study of earthquakes and seismic waves that moves through and around the earth
seismology
is a scientist who studies earthquakes and seismic waves
seismologist
is an instrument used to detect and record seismic waves
seismograph or seismometer
sound that travels through soft tissue and fluids
ultrasound
is an area of the earths surface where sismographs cannot detect earthquakes after it seismic waves had pass through the earth
seismic shadow zone
is the most destructive seismic waves
surface waves
all earth
pangea
all water
panthalassa
laurasia
gondwanaland
theories of the movement of the plates
continental drift theory
seafloor spreading theory
plate tectonics theory
the two scientists who used visial or drawing in seafloor spreading theory
harry hesc
robert dietz
SONAR
sound navigation and raging
they didnt study it its just the combination of alfred, robert and harry
plate tectonics theory
a german meteorologist and geophysicist changed the worlds perspective of the earth
alfred wegener
greek word for pangea
all earth
stated that continents were all connected at one point in earths history
the continental drift theory
was a woody, seed bearing shrub or tree
glossopteris
it forms a single largest mountain chain in the world
mid-ocean ridges
is a continous process because forces cause opposite sides of the mid-ocean ridge to constantly move apart
seafloor spreading
refers ti change in the earths magnetic field
alternating magnetic polarity
who proposed convectional current theory
arthur holmes
laws of motion
law of inertia
law of acceleration
law of interaction
an object will not change its motion unless a force acts on it.
law of inertia
the force on an object is equal to its mass times its acceleration
law of acceleration
when two objects interact, they apply forces to each other of equal magnitude and opposite direction
law of interaction
changes in long term averages of daily weather
climate change
average of weather over time and space
climate
floods
el nino
drier or warmer
la nina
stable subatomic particle
electrons
moving
motion
any influence that can produce a change in the speed or direction of the motion of a subject
force
rate of change of distance
speed
rate of change of displacemnt
velocity
a muscular funnel that extends from theposterior end of the nasal cavity to thesuperior end of the esophagus and larynx
pharynx
connects the larynx to the bronchi andallows air to pass through the neck and intothe thorax
trachea
into the right lung before branching off into smaller secondary bronch
left pulmonary bronchus
large, spongy organs found in the thoraxlateral to the heart and superior to thediaphragm
right lung
inside of the nose
nasal cavity
muscles found beneath the lungs that aid thebreathing process
diaphragm
two external openings of the nasal cavity; alsoreferred to as nostrils
external nares
also known as the voice box
larynx
This blood component serves as the soldier ofthe body which fights off foreign diseases
white blood cells
runs into the left lung before branching off into smaller secondary bronchi
left pulmonary bronchus
This blood component carries oxygen andcarbon dioxid
red blood cells
This blood component takes part in bloodclotting.
platelets
blood flow between the heart and body tissues
systemic circulation
This blood component makes up most of theblood and is composed mainly of water
plasma
flow of blood between the heart and the lungs
pulmonary circulation
