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Internal and External Forces That Shape The Earth

Across
Large mass of ice that moves
Boundary formed when plates collide
Force that moves glaciers
Boundary formed when plates move apart
Crack in the earth's surface where magma and gases spew out
Device used to detect earthquakes
Changes in landforms due to movement of glaciers
Change in size of material over time
Pieces of the lithosphere that move
Crack in the earth's surface
Point above the focus of an earthquake
Area of greatest concentration of active volcanoes
Very small pieces of rock worn down over time
Term for when plates buckle or fold
Down
When material is moved by water, gravity, wind, ice
Wind-blown silt and clay that produces fertile soil
Molten rock below the surface of the earth
Loose mixture of weathered rock, organic material, air, and water that supports plant growth
Change in composition over time
Ridge or hill of rock left behind by a glacier
Gradual changing of earth's surface due to external forces
Violent movement of the earth
Plates that slide past each other
Severity of an earthquake is measured on the...
Molten rock from a volcano on the surface of the earth
Organic material in soil
When one plate slides under the other
Giant wave caused by earthquake