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Journey to the Earth
Plate Tectonics
Hot, Hot, Hot!!!
Plate Boundaries
Volcanoes
100
solid metal due to pressure
What is the inner core
100
theory that the lithosphere is broken into moving plates
What is plate tectonics
100
molten rock inside the Earth
What is magma
100
Two plates moving past each other; formation of the San Andreas Fault. What boundary am I?
What is fault boundaries
100
formed from lava flows that harden
What is shield
200
extremely hot liquid metals
What is the outer core
200
scientist who studies the Earth
What is a geologist
200
molten rock which reaches Earth’s surface
What is lava
200
Two plates push against each other; formation of the Himalayas. What boundary am I?
What are colliding boundaries
200
formed from explosive eruptions in which volcanic materials are thrown high in the air and pile up around the vent of the volcano
What is cinder cone
300
thin, hot layer found under Earth’s crust
What is the mantle
300
Large sections of the Earth called plates, what is the largest?
What is the Pacific Plate
300
area in Earth’s mantel that is hotter than surrounding areas, forming melted rock that rises toward the crust
What is hot spot
300
Two plates are pulled apart; formation of the Great Rift Valley in Africa. What boundary am I?
What are spreading boundaries
300
formed from alternating explosions and lava flow
What is composite
400
thin, outer layer of the Earth composed of solid rock
What is the crust or lithosphere
400
All continents were once joined to form a super continent called
What is Pangaea
400
deep sided depression at the top or on the side of a volcano formed during an eruption
What is crater
400
Most observed volcanoes occur at what type of boundaries?
What are colliding
400
tiny bits of rock that fly into the air during an eruption; can form a thick cloud of ash and cinders.
What is volcanic ash or cinders
500
What part of the crust is composed primarily of granite, is thicker?
What is the Continental Crust
500
Theory which was first proposed by Alfred Wegener in 1912
What is Continental Drift Theory
500
chain or cluster of islands
What is an island chain
500
large sections of the Earth’s crust
What are plates
500
an opening in the Earth’s surface through which magma rises
What is a volcano