Sedimentary
Igneous
Metamorphic
Definitions
Short Answer
100

How are sedimentary rocks formed?

With compaction and cementation.

100

How are igneous rocks formed?

By cooling magma.

100

How are metamorphic rocks formed?

With heat and pressure.

100

What is a rock?

A naturally occurring solid combination of minerals and organic matter.

100

What is the difference between magma and lava?

Magma is inside the ground and lava is outside the ground.

200

What are the three types of sedimentary rocks?

Clastic, organic, and chemical.

200

What are the two types of igneous rocks?

Intrusive and extrusive.

200

What are the two types of metamorphic rocks?

Foliated and non foliated.

200

What is foliation?

The process in which mineral grains are arranged.

200

What is the difference between weathering and erosion?

Weathering is the act of breaking it down and erosion is the act of carrying it away.

300

Which of the following is an example of a clastic sedimentary rock?

a) conglomerate

b) halite

c) coal

d) granite

a) conglomerate

300

What is the difference between intrusive and extrusive igneous rocks?

Intrusive form in the ground and extrusive form outside of the ground.

300

What is the difference between foliated and non foliated?

Foliated forms layers and non foliated does not.

300

What is weathering?

The breaking down of a substance with wind or water.

300

How is magma formed?

Through the melting of rocks.

400

Which of the following is an example of an organic sedimentary rock?

a) conglomerate

b) halite

c) coal

d) granite

c) coal

400

Which of the following is an example of an intrusive igneous rock?

a) Granite

b) Obsidian

c) Schist

d) Marble

a) granite

400

Which of the following is an example of a foliated metamorphic rock?

a) Granite

b) Obsidian

c) Schist

d) Marble

c) schist

400

What is erosion?

When sediment that has been broken down is carried away.

400

What are the criteria used to classify rocks?

Composition and texture.

500

Which of the following is an example of a chemical sedimentary rock?

a) conglomerate

b) halite

c) coal

d) granite

b) halite

500

Which of the following is an example of an extrusive igneous rock?

a) Granite

b) Obsidian

c) Schist

d) Marble

b) obsidian

500

Which of the following is an example of a non foliated metamorphic rock?

a) Granite

b) Obsidian

c) Schist

d) Marble

d) marble

500

What is deposition?

When sediment is dropped off.

500

What is the difference between pahoehoe and aa.

Pahoehoe is fast moving and hot. Aa is slow moving and cool.