Vocabulary
Volcanoes
Earthquakes
Rocks
Mountains
Tectonic Plates
100

melted rock in the Earth’s mantle

magma

100

What forms when a undersea volcano continuously erupts depositing sediment and growing upwards 

island 
100

a gigantic wave of seawater caused by an earthquake 

tsunami 

100

sediments collected in layers over time is what time of rock 

sedimentary rock 

100

Tallest mountain in Asia 

Mount Everest 

100

the outermost layer of the earth 

crust

200

a hill or mountain formed over a crack in the Earth that erupts

volcano

200

Mount St. Helens began to _____________ on one side before it erupted 

bulge

200

a crack in the earth's crust 

fault 

200

rock that is formed from magma cooling & solidifying 

igneous rock 

200

mountains that look like great hums of rock with rounded tops 

dome mountains 

200

an explanation for why something happens based on evidence 

theory 

300

a bowl-shaped opening at the top of a volcano or geyser

crater

300

the most volcanically active regions in the world; name for the border of the Pacific tectonic plate 

Ring of Fire 

300

a smaller, weaker earthquake tat often follows a main earthquake event 

aftershock 
300

movement of sediments from place to place 

erosion 

300

when tectonic plates collide with so much pressure the crust crumbles forming what type of mountain 

fold mountains 

300

layer of the earth between the crust and the outer core 

mantle 

400

a deep valley with steep sides

canyon

400

Volcanoes will sometimes ____________________ sending out rock, lava and ash in a sudden explosion

erupt

400

an instrument used to measure the intensity of an earthquake

seismograph

400

rock that is exposed to extreme heat and pressure 

metamorphic rock 

400

The Indo-Australian plate moved in what direction to form the Himalayan mountains 

North 

400

place where crust is sinking down into the mantle 

ocean trenches 

500

solid top part that is broken up into sections that move against each other

tectonic plates

500

a very hot region deep within Earth's mantle where a huge magma chamber forms 

hotspot 

500
the point on the earth's surface directly above the focus of an earthquake


epicenter 

500

a common igneous rock that forms from magma that coooled within earths crust 

granite 

500

Two examples of folded mountain ranges 

Andes & Himalayas 

500

Process when an oceanic plate slides under a continental plate 

subduction