Volcanoes #2 Question Preview (ID: 4793)

Volcano Review Game.[print questions]

A rock is always:
a) made of molten material
b) very dense
c) formed by heat and pressure
d) made of one or more minerals

The crystals that form in slowly cooling magma are:
a) Tiny
b) large
c) square
d) fine-grained

Magma from deep inside the earth rises toward the surface because:
a) It is denser than the surrounding solid rock
b) Gravity does not effect magma
c) it is less dense than the surrounding solid rock
d) it is the same density as surrounding solid rock

Are all volcanic eruptions the same?
a) no, because volcanoes can range from mild fissure volcanoes to very violent
b) no, because sometimes the magma can\'t push through the crust
c) yes, because they all create igneous rock
d) yes, because they all have hot lava from deep inside earth

The movement of weathered material is called:
a) earthquakes
b) uplifting
c) convection
d) erosion

The uneven heating of the mantle causes ________________ currents.
a) compaction
b) convection
c) cold
d) warm

Pressure from upper layers pushing sediments together is called:
a) compaction
b) convection
c) erosion
d) dense

Lava and ____________can cool to become igneous rocks
a) sediments
b) magma

Weathering and erosion can break rocks into smaller pieces called:
a) sand
b) pieces
c) sediments
d) smaller rocks

If you broke a rock to observe if it had a smooth or rough edge, you would be testing for:
a) cleavage or fracture
b) hardness
c) luster
d) streak

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