Types and Formation of Rocks

Front

What are the three types of rocks?

Back

Igneous, Sedimentary, Metamorphic

Front

How are igneous rocks formed?

Back

From the cooling of magma or lava

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive cool slowly inside Earth (large crystals), extrusive cool quickly on surface (small crystals)

Front

What is a sedimentary rock?

Back

Rock formed by compaction and cementation of sediments

Front

What are the three types of sedimentary rock?

Back

Clastic, Chemical, Organic

Front

What is a metamorphic rock?

Back

Rock changed by heat and pressure

Front

What are the three types of metamorphic rocks?

Back

Foliated, Non-foliated, Contact/Regional

Front

What causes metamorphic rocks to form?

Back

Heat and pressure deep within the Earth

Front

What is weathering?

Back

Breaking down of rocks into smaller pieces

Front

What is erosion?

Back

Movement of sediments by wind, water, or ice