Actual Exam Questions and CORRECT
Answers
seismic waves - CORRECT ANSWER✔✔- Vibrations that travel through Earth carrying the
energy released during an earthquake.
crust - CORRECT ANSWER✔✔- the outer layer of the Earth
mantle - CORRECT ANSWER✔✔- the layer of hot, solid material between Earth's crust and
core
lithosphere - CORRECT ANSWER✔✔- the solid, outer layer of the earth that consists of the
crust and the rigid upper part of the mantle
asthenosphere - CORRECT ANSWER✔✔- the soft layer of the mantle on which the
lithosphere floats
basalt - CORRECT ANSWER✔✔- a rock that makes up much of the ocean floor
granite - CORRECT ANSWER✔✔- a usually light-colored rock that is found in continental
crust
outer core - CORRECT ANSWER✔✔- a layer of molten iron and nickel that surrounds the
inner core of Earth
inner core - CORRECT ANSWER✔✔- a dense sphere of solid iron and nickel at the center
of Earth
radiation - CORRECT ANSWER✔✔- the transfer of energy through space
, conduction - CORRECT ANSWER✔✔- the direct transfer of heat from one substance to
another substance that it is touching
convection - CORRECT ANSWER✔✔- the transfer of heat by the movement of a fluid
density - CORRECT ANSWER✔✔- the amount of matter in a given space
convection current - CORRECT ANSWER✔✔- the movement of a fluid, caused by
differences in temperature, that transfers heat from one part of the fluid to another
continental drift - CORRECT ANSWER✔✔- the hypothesis that states that the continents
once formed a single landmass, broke up, and drifted to their present locations
Pangaea - CORRECT ANSWER✔✔- large, ancient landmass that was composed of all the
continents joined together
fossil - CORRECT ANSWER✔✔- the remains (or an impression) of a plant or animal that
existed in a past geological age and that has been excavated from the soil
mid-ocean ridge - CORRECT ANSWER✔✔- An underwater moutain chain where new
ocean floor is formed
sonar - CORRECT ANSWER✔✔- a device that determines the distance of an object under
water by recording echoes of sound waves
sea-floor spreading - CORRECT ANSWER✔✔- the process by which molten material adds
new oceanic crust to the ocean floor
deep-ocean trench - CORRECT ANSWER✔✔- a deep valley along the ocean floor beneath
which oceanic crust slowly sinks toward the mantle
subduction - CORRECT ANSWER✔✔- the process by which oceanic crust sinks beneath a
deep-ocean trench and back into the mantle at a convergent plate boundary