Earth Science Rocks Unit Test Review

Front

What type of rock is formed from lava on the earth's surface?

Back

Igneous rock is formed from lava that cools and solidifies on the earth's surface.

Front

Which of the following is NOT a characteristic of metamorphic rocks?

Back

Holes from trapped gases are not a characteristic of metamorphic rocks.

Front

What physical characteristic best describes phyllite?

Back

Phyllite has a foliated texture with microscopic mica crystals.

Front

When describing the sizes of mineral grains in a rock, what term is used?

Back

Texture refers to the sizes of the mineral grains in a rock.

Front

What type of rock is formed from molten rock (magma/lava) that has cooled?

Back

Igneous rock is formed from molten rock that has cooled.

Front

What are the three main types of rocks?

Back

The three main types of rocks are igneous, sedimentary, and metamorphic.

Front

What is the process called when rocks are broken down into smaller pieces?

Back

Weathering is the process of breaking down rocks into smaller pieces.

Front

What type of rock is formed from the accumulation of sediment?

Back

Sedimentary rock is formed from the accumulation and compaction of sediment.

Front

What is metamorphism?

Back

Metamorphism is the process by which existing rocks are transformed into metamorphic rocks due to heat and pressure.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive igneous rocks form from magma that cools slowly beneath the earth's surface, while extrusive igneous rocks form from lava that cools quickly on the surface.