RocksRocks

Rocks Rock!!!!Rocks Rock!!!!

• When you classify objects, you organize them into groups based on common characteristics.

• What are some different ways you could classify these marbles?

• What characteristics do you think scientists use to classify rocks?

What are Rocks?What are Rocks?

What are Rocks?What are Rocks?

• Rock is a natural occurring solid mixture of one or more minerals and organic matter

So what is a Mineral?So what is a Mineral?

So what is a Mineral?So what is a Mineral?

• Naturally formed solid matter that has a crystalline structure.

How do you describe Minerals?How do you describe Minerals?

How do you describe Minerals?How do you describe Minerals?

• Color

• Hardness

• Density

• Fracture

• Composition

• Texture

CompositionComposition

• Limestone is a rock composed of the minerals Calcite and Argonite.

• Limestone= CaCO3

GrainsGrains

• Fine Grain

• Small crystals

• Basalt

• Med Grain

• Granite

• Coarse Grain

• Crystals are large and can be seen with the naked eye

• Conglomorate

Rock Rock TextureTexture

Fig. 5.1

Rock type Characteristics

Igneous

Sedimentary

Metamorphic

Three Types of RocksThree Types of Rocks

Three Types of RocksThree Types of Rocks

• Igneous

• Sedimentary

• Metamorphic

• Write at least two paragraphs on how rocks can move through the rock cycle using at least 8 vocabulary terms.

Genetic Classification of Igneous RocksGenetic Classification of Igneous Rocks• ExtrusiveExtrusive: … lava cools above ground.

Pumice

Scoria

Ash

Process of IntrusionProcess of Intrusion• Intrusive rocksIntrusive rocks..... lava cools underground..... lava cools underground