Volcanoes & Igneous Rocks

What is an igneous rock?

• a rock that has formed during the melting of lava

• a rock that has formed from the cooling and solidification of lava

• a rock that has formed with over 100 crystals

• a rock that is used for buildings

Define: extrusive igneous rock

• formed when lava cools quickly

• formed when lava cools slowly

• contains large crystals

• contains small crystals

Define: intrusive igneous rock

• formed when lava cools quickly

• formed when lava cools slowly

• contains large crystals

• contains small crystals

Lava cools ______ at the surface forming _______ crystals

Tags

NGSS.MS-PS1-4

The mantel is ____

• solid and rigid

• molten and plastic

• cold and liquid

• gaseous

Deep oceanic rock that is dark, coarse grained and dense is known as ______

• Granite

• Basalt

• Gabbro

• Andesite

Basalt lava that flows into the ocean is are quenched by cold seawater and forms ____

• Obsidian

• Gabbro

• Scoria

• Granite

Tags

NGSS.MS-ESS2-2

Which mineral would not be likely found in a felsic rock? ____

• Olivine

• Quartz

• Mica

• Potassium Feldspar

Tags

NGSS.MS-PS1-1

The three (3) types of volcanoes are ____ (mark all that apply)

• Composite

• Shield

• Fissure

• Cinder

The Earth’s crust is divided into pieces which fit together like a jigsaw. What are they called?