1.What properties do scientists observe when studying rocks? 2.What are rocks made of? 3.Explain how color helps identify a rocks mineral composition.

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Presentation transcript:

1.What properties do scientists observe when studying rocks? 2.What are rocks made of? 3.Explain how color helps identify a rocks mineral composition. 4.What gives rocks texture? 5.How do scientists describe texture (3)? 6.Explain grain size, shape, and pattern. 7.Three types of rock are…? 8.Classified according to…? CHAPTER 6, LESSON 2: CLASSIFYING ROCKS

1. What properties do scientists observe when studying rocks? CHAPTER 6, LESSON 2: CLASSIFYING ROCKS Geologists observe the rock’s mineral composition, color, and texture.

2. What are rocks made of? CHAPTER 6, LESSON 2: CLASSIFYING ROCKS Mixtures of minerals and other materials

3. Explain how color helps identify a rocks mineral composition. CHAPTER 6, LESSON 2: CLASSIFYING ROCKS Color gives clues to mineral composition, but is not enough alone to identify rocks.

4. What gives rocks texture? CHAPTER 6, LESSON 2: CLASSIFYING ROCKS Particles of minerals or other rock are the grains that give rocks texture.

5. How do scientists describe texture (3)? CHAPTER 6, LESSON 2: CLASSIFYING ROCKS Size, Shape, and Pattern

6. Explain grain size, shape, and pattern. CHAPTER 6, LESSON 2: CLASSIFYING ROCKS Size: fine, coarse, none Shape: rounded, jagged Pattern: banded, non-banded

7. Three types of rock are…? CHAPTER 6, LESSON 2: CLASSIFYING ROCKS Igneous, metamorphic, sedimentary

8. Classified according to…? CHAPTER 6, LESSON 2: CLASSIFYING ROCKS How they were formed.