Unit 3 ESS Review

Front

What types of fossils do scientists rely on to learn about Precambrian time?

Back

Fossils from algae and other simple plants.

Front

What is true about rocks?

Back

Most rocks are a mixture of minerals.

Front

What characteristic of intrusive igneous rocks results in a coarse-grained texture?

Back

A slow cooling rate.

Front

What two characteristics are used to identify igneous rocks?

Back

Composition and texture.

Front

Which agent of metamorphism tends to create a more compact, denser rock?

Back

Pressure.

Front

Define igneous rock.

Back

Rocks formed from the solidification of molten material (magma or lava).

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

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

Front

What is lithification?

Back

The process of turning sediments into solid rock through compaction and cementation.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is the role of pressure in metamorphism?

Back

Pressure can cause minerals to recrystallize, leading to denser and more compact rocks.