Chapter 1 Flashcards
Geology
the study of the earth’s physical structure and history
earth’s layers
core - center, very hot metal
mantle - thick layer of rock
crust - rocky surface layer
lithosphere
rock, landforms, and other surface features
atmosphere
layer of air, water, and other substances above the surface
hyrdosphere
cosinsts of water in oceans, lakes, and rivers
biosphere
world of plants, animals, and other living things that occupy land and water
continents
the large land masses in the oceams
relief
difference in elevation between highest and lowest point
volcanoes
form when magma breaks through earth’s crust
plate techtonics
theory that earth’s outer shell is not one solid sheet of rock
continental drift theory
a single supercontinent (Pangaea) broke into separate continents
Ring of Fire
circle of volcanoes surrounding the pacific ocean