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Lesson: Types of Rock Chemistry

In this lesson, we will learn how to identify igneous, sedimentary, and metamorphic rocks and describe their composition and physical properties.

Lesson Plan

Students will be able to

define igneous, sedimentary, and metamorphic rocks,
describe the key steps in the production of igneous, sedimentary, and metamorphic rocks,
identify and compare the physical properties of rock types, such as hardness, density, and appearance,
name common examples of rock types,
identify rock types from their qualitative physical properties.

Q1:

A rock is formed from magma that cooled slowly to form large crystals without penetrating the Earth’s surface. Which type of rock is it?

Q2:

A rock is formed from magma that penetrated the Earth’s crust as lava and cooled quickly to produce small crystals. Which type of rock is it?

Q3:

A rock has been heated under high pressure, deep beneath the surface of Earth. It is extremely hard. Which type of rock is it?