Rocks Classification of Rocks
What is a Rock? • A rock is a solid that can be composed of minerals, pieces of other rocks, and organic material (plant & animal matter). • There are 3 types of rock: Igneous, Sedimentary, Metamorphic
Minerals vs. Rocks Minerals Rocks
Classification of Rocks • Rocks are classified by their formation. • Each type of rock is formed in a different way.
Igneous Rocks Identifying &Classifying Igneous Rocks
What are Igneous Rocks? • Igneous is derived from the Latin word ignis, meaning “fire”. • How do you think igneous rocks are formed? • Igneous rocks are formed from molten rock that has cooled and solidified.
Intrusive vs Extrusive Intrusive Igneous Rock Extrusive Igneous Rock Extrusive igneous rocks are formed by lava. What does this tell you about where it is formed? What does this tell you about the crystals • Intrusive igneous rocks are formed by magma • What does this tell you about where it is formed? • What does this tell you about the crystals?
Classifying Igneous Rocks • In your notebook, create a table to list igneous rocks. • Observe the following rocks and determine whether they are intrusive or extrusive.
Sedimentary Rocks Examples of Sedimentary Rocks