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Earth 5

name: ______________________________
Across
To release gas.
Flow that contains volcanic fragments mixed with water.
Airborne volcanic fragments.
The layering of sediments and/or rocks.
Chamber where molten rock resides.
Deposits left by the melted water coming off a glacier.
Magma that erupts onto Earth's surface.
When older rock becomes part of magma
The resistance of a liquid to movement and flow
The geologic era that spans from the formation of Earth around 4.5 b.y.a. to about 544 m.y.a.
Hollow cones of rock hanging down from the ceiling of a cave.
Down
The period that begins about 800 million years after Earth formed and lasted for about 1.4 billion years.
The first period in Earth's history, so named because it was thought to be like Hades.
A scientific idea supported by evidence but not necessarily proven
Molten or partially molten rock that lies below Earth's surface
Sedimentary layers formed by micro-organisms.
The breaking down of rocks.
The third, and last, period in the Precambrian, that lasted nearly 2 billion years.
A map that conveys specific information about an area, usually with colors, patterns, or symbols.
Solid cones of rock growing from the floor of a cave.