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science 6-1

Chapter One Science BJU Press

QuestionAnswer
magma hot molten rock
Lithosphere- The crust and upper area of the mantle
Plate- large pieces of pieces of the lithosphere.
Theory of Plate Tectonics- The idea of the Earth's crust is made of moving plates.
Plate Boundary- Places where the plates meet.
Earthquake- Rocks along the plate boundaries that shift suddenly and release stored energy.
Fault- Breaks in the Earth's surface along which rocks can move.
Epicenter- The point on the surface of the Earth directly above the focus.
Magnitude- The strength of the seismic waves of an earthquake.
Richter Scale- A machine that detects, times, and measures the movements of the Earth.
Seismograph- Measures the magnitude of an earthquake.
Tsunamis- Giant ocean waves triggered by earthquakes, volcanoes,or landslides.
Focus- Beginning point of an earthquake.
Seismic Waves- Vibrations that flow out from the beginning point of an earthquake.
Magma- Molten rock.
Volcano- Forms where a crack in the Earth's crust allows magma and gases to come to the surface.
Volcanologist- Scientists who study volcanos.
Magma Charter- Deep in the Earth's lithosphere,pockets of molten rocks.
Lava- When magma cracks the Earth's surface.
Vent- . Where the lava flows out of
Crater- The bowl shape at the top of the main vent.
Ash- When a volcano erupts it produces clouds filled with jagged bits of crushed rock.
Cone- A funnel shaped mound.
Ring of Fire- Rings that volcanoes form.
Hot Spot- Places where a pool of intensely hot magma rises toward the surface.
Cinder- Eruptions tend to be explosive, which send ash and lava floating in to the air.
Tephra- Hardened lava.
Pyroclastic Flow- Red hot dust and gases.
Vog- Volcanic gases.
Debris Flow- Occurs when part of the mountain collapses and mud and rock fragments surge down the mountain.
Igneous Rock- When magma and lava harden it forms rocks called Igneous Rocks.
Hot Spring- When the water is heated and it rises to the earths surface.
Geyser- A hot spring that periodically blows steam and hot water into the air.
Mud Pot- A hot spring that contains more mud than water.
Created by: cprejean0814