Igneous and Sedimentary Review

How does igneous rock form?

• sediment collects in layers to form rock layers

• mineral grains or tiny pieces of rocks that have been worn away by wind, water, or ice

• melted rock from inside Earth cools and hardens

What type of igneous rock forms when melted rock material cools on Earth's surface?

• extrusive igneous rock

• intrusive igneous rock

What type of igneous rock forms when melted rock material cools beneath Earth's surface?

• extrusive igneous rock

• intrusive igneous rock

Tags

NGSS.MS-ESS2-1

What is melted rock that reaches Earth's surface?

• lava

• magma

A rock with large mineral grains would probably be a __________ rock.

A rock with large mineral grains in it would probably be an __________ rock.

Extrusive igneous rocks have...

• Coarse-grained texture.

• Fine-Grained texture.

Found near volcanoes

• sedimentary

• igneous

• metamorphic

This rock is black, shiny and is an igneous rock.

What is this rock?

• Obsidian

• Gneiss

• Mica

• Squirrel tails

Is this Intrusive or Extrusive?

• Intrusive

• Extrusive