SCIENCE 5 ROCKS

These are rocks that are common near volcanoes; they originate from deep within Earth where it is very hot.

• igneous rocks
• lava
• extrusive igneous rocks
• intrusive igneous rocks

The magma that reaches Earth's surface is called _____.

• igneous rocks
• lava
• extrusive igneous rocks
• intrusive igneous rocks

The lave that flows cools off then hardens into rocks that are known as _____.

• igneous rocks
• lava
• extrusive igneous rocks
• intrusive igneous rocks

The magma that has cooled down and has crystallized underneath Earth's surface forms ______.

• igneous rocks
• lava
• extrusive igneous rocks
• intrusive igneous rocks

These rocks are fine grained; their crystal cannot be seen without using a magnifying glass.

• igneous rocks
• lava
• extrusive igneous rocks
• intrusive igneous rocks

These include basalt, andesite, and rhyolite.

• igneous rocks
• lava
• extrusive igneous rocks
• intrusive igneous rocks

It is made up of quartz, feldspar and mica.

• granite
• diorite
• basalt
• felsite rocks
• obsidian

It is made up of dark minerals such as feldspar and hornblende.

• granite
• diorite
• basalt
• felsite rocks
• obsidian

Lava that turns into a black rock when cooled is called _____

• granite
• diorite
• basalt
• felsite rocks
• obsidian

These are formed from lava that cools fast; they are made from light-colored-lava.

• granite
• diorite
• basalt
• felsite rocks
• obsidian