Earthquakes and Volcanoes by Lin Sutherland and Thomas Wright
Geology by Barbara Murck
Vocabulary Added:
geothermal gradient: the rate the temperature increases with depth in the Earth
decompression melting: how the melting point changes as the pressure changes
Discussion:
why rocks melt
why the mantle is mostly solid and not melted rock
Activity:
Salt and ice experiment
Recording the boiling point of different liquids
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