Warm-up: Igneous Rocks

What is the most common Extrusive igneous rock that is known to make up the ocean floor?

• Granite

• Basalt

• Pumice

• Scorie

Intrusive Igneous rocks will be

• coarse grain (larger crystals)

• fine grain (smaller crystals)

What is the most common Intrusive Igneous rock that is known to make up the continental crust?

• Basalt

• Gabbro

• Diorite

• Granite

How do Intrusive Igneous rocks cool?

• quickly
• slowly
• really fast

Tags

NGSS.MS-PS1-4

Where do we find Granite?

• ocean floor

• deserts

• mountains

• river valleys

When describing an igneous rocks, we typically describe them by how fast they cooled either inside or outside of Earth and composition. If the rock contains lots of Silica, it is usually lighter in color, if mafic it is usually darker in color. Describe this igneous rock.

• Intrusive , High Silica

• Intrusive , Low Silica

• Extrusive , High Silica

• Intrusive , Low Silica

Type of igneous rock formed from lava.

• Inclusive
• Extrusive
• Exclusive
• Imported

Type of igneous rock formed from magma

• Intrusive
• Extrusive
• Exclusive
• Implosive

The process by which igneous rocks are formed...

• heat and pressure deep underneath earth's surface
• melting and cooling of magma
• compaction and cementation of sediments

Extrusive rocks, like Basalt, that form quickly above the Earths surface but does not cool the fastest have

• small crystals

• large crystals

• small and large crystals

• no crystals