Our Fascinating Earth

Our Fascinating Earth | Quizalize

44 questions

the study of the earth and its structure

30 sec

scientists who study the structure of the earth

30 sec

the outermost layer of the earth

30 sec

the three major sections of the interior of the earth

30 sec

a thin layer of soil and a thick layer of sand and mineral fragments

30 sec

the middle layer of the earth

30 sec

the boundary between the crust and the mantle

30 sec

the innermost region of the earth

30 sec

essential for all plant life

30 sec

a process that causes rocks to gradually break or crumble into smaller pieces

30 sec

occurs when natural acids slowly eat into rock and break it apart

30 sec

when rock is broken down by water, ice, or windblown sand

30 sec

large sections of the earth's crust that float on the soft rock of the upper mantle

30 sec

underwater mountain ranges

30 sec

sudden movement of the Pacific plate under the ocean floor also created by monstrous waves

30 sec

any trembling or shaking of the earth's crust

30 sec

a weak earthquake or slight vibration of the ground, accompanied by a low rumbling sound

30 sec

smaller earthquakes or tremors

30 sec

the study of earthquakes

30 sec

scientists who study earthquakes

30 sec

the break that appears at the boundary between two moving masses of rock

30 sec

the point underground where an earthquake begins

30 sec

the place at ground level that is directly above the focus

30 sec

devised scales of earthquakes

30 sec

the most famous scale used to measure earthquake strength

30 sec

regions of the earth where most earthquakes occur

30 sec

melted rock

30 sec

a large reservoir a few miles beneath the earth's surface that contains magma

30 sec

an opening caused by trapped gases that blast their way through the earth's surface

30 sec

a vent that allows molten rock and hot gases to escaoe from within the earth

30 sec

molten rock after it reaches the earth's surface

30 sec

lava fragments that solidify almost instantly into fragments of rock

30 sec

fragments that are smaller than volcanic bombs and blocks but are larger than volcanic ash; "little stones"

30 sec

the smallest fragments of tephra

30 sec

a hole or crack in the ground that serves as an escape vent for underground gases

30 sec

three common types of volcanoes

30 sec

when large amounts of runny lava gradually build up a dome-shaped mountain

30 sec

formed by eruptions composed mostly of tephra, or small fragments of solidified lava

30 sec

formed when alternating layers of fluid lava and tephra build up a steep, symmetrical mountain

30 sec

a huge, bowl-shaped depression formed when an empty magma chamber collapses after a volcanic eruption

30 sec

a volcano that has erupted recently or is considered likely to erupt in the near future

30 sec

a volcano which erupted many years ago and is now inactive, but which may erupt again

30 sec

volcanoes that have not erupted in recorded history or are unlikely to ever erupt again

30 sec

three common types of eruptions

30 sec

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