3 Types of Rocks and The Rock Cycle

The video tutorial introduces the three main types of rocks: igneous, sedimentary, and metamorphic. It explains how igneous rocks form from cooled volcanic magma, either as intrusive or extrusive rocks, with examples like basalt and obsidian. Sedimentary rocks form from compressed sediment layers, often containing fossils, with examples like limestone and shale. Metamorphic rocks result from existing rocks transformed by heat and pressure, with examples like marble and schist. The video concludes with a recap of these rock types.

What are the three main types of rocks mentioned in the text?

List examples of each type of rock mentioned in the text.

Describe how igneous rocks are formed.

What is sedimentary rock and how does it form?

Explain the process of metamorphosis in rocks.