earth composition
earthquakes
volcanoes
other
100
what is the layer of earth that we walk on?
crust
100
how can you measure earthquakes?
seismograph
100
jackpot! free 100!
jackpot! free 100!
100
TRUE OR FALSE: tectonic plates move together, in unison
FALSE
200
what are tectonic plates?
earths crust divided up (not evenly)
200
what are convergent boundaries?
BONUS for extra 100: when do Subduction occur?
when 2 tectonic plates move towards each other.
BONUS: subduction occurs when one plate slices under the other
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200
TRUE OR FALSE: after earthquake, the ground becomes shapeable and kinda like a thick liquid
TRUE
200
how was Hawaii formed?
Hawaii was formed by a Hot spot which means: the mantle having a push of magma. As tectonic plates move over to that spot a chain of volcanoes can form.
300
what are the 5 parts of earth?
crust, upper mantle, lower mantle, outer core, inner core
300
what does diverging mean?
diverging is when 2 tectonic plates move away from each other
300
what are 3 different kinds of volcanoes?
cinder cone, composite, shield
300
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400
what are 4 ways of discovering what's inside earth?
digging, seismic waves, surface rocks, and electromagnetic fields
400
what is a fault, hypoceter/focus, and epipcenter
FAULT:a crack in earth
FOCUS/HYPOCENTER:spot under earth where earth shifted
EPICENTER:the spot on the surface above the surface
400
what do volcanoes release into the air (not including magma)
smoke, and ash
400
what are transform boundaries?
when 2 plates slide/scape past each other