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Hō‘ike o Haleakalā Curriculum

High school science curriculum designed by Maui teachers and field biologists

Volcano

February 4, 2013 by Hoike

a place where magma (molten rock) and/or gas comes to the surface from within the earth’s core (A1)

Volcanic ejecta

February 4, 2013 by Hoike

fragments of lava or already solidified rock that is thrown into the air (or ‘ejected’) by a volcanic explosion (A1)

Volcanic ash

February 4, 2013 by Hoike

volcanic ejecta that is less than .5 centimeters (.2 inch) in diameter comprised of already solid rock, crystals from solid rock, or particles of lava that were thrown up as liquid spray (A1)

Viscosity

February 4, 2013 by Hoike

fluidity (A1)

Vesicle

February 4, 2013 by Hoike

a hole left behind when lava cools quickly and traps gases (A1)

Tephra

February 4, 2013 by Hoike

volcanic ejecta (A1)

Spatter

February 4, 2013 by Hoike

volcanic ejecta that is partly liquid when it strikes the ground, flattening out or splashing when it hits (A1)

Relative time scale

February 4, 2013 by Hoike

as in the geologic time scale, one that expresses age or length in relationship to other periods of time or geologic formations (A1)

Radiometric dating

February 4, 2013 by Hoike

establishing an age based on changes in atomic structure (A1)

Radiocarbon dating

February 4, 2013 by Hoike

a process for determining the age of organic (carbon-containing) materials using the rate of radioactive decay of Carbon-14, also known as Carbon-14 (C-14) dating (A1)

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