Presentation is loading. Please wait.

Presentation is loading. Please wait.

Unit 3 Minerals and Rocks The Big Idea: Minerals and rocks are basic building blocks of Earth and can change over time from one type of mineral or rock.

Similar presentations


Presentation on theme: "Unit 3 Minerals and Rocks The Big Idea: Minerals and rocks are basic building blocks of Earth and can change over time from one type of mineral or rock."— Presentation transcript:

1 Unit 3 Minerals and Rocks The Big Idea: Minerals and rocks are basic building blocks of Earth and can change over time from one type of mineral or rock to another

2 Animal, Vegetable, or Mineral? ò Mineral-a naturally occurring, inorganic solid with a definite crystalline structure and chemical composition. Elements- pure substances that cannot be broken down into simpler substances by chemical means. Atom-building block of matter, each element is made up of one kind Compound- A substance made up of molecules of two or more elements Unit 3 Lesson 1 Minerals

3 What’s the Matter with you? ò Matter- anything that has mass and volume. Volume-amount of space something takes up. All minerals are solid, meaning each has a definite volume and shape. Unit 3 Lesson 1 Minerals

4 ò Crystals- solid geometric forms produced by a repeating pattern of atoms or molecules. ò They can form from any of the following: 1. magma – change from liquid to solid 2. lava 3. metamorphism- P & T chemical makeup; no melting 4. Solutions-like water Unit 3 Lesson 1 Minerals

5 Sort It Out Copyright © Houghton Mifflin Harcourt Publishing Company Silicate- combination of Si and O. 90% of earth’s crust Nonsilicate – some are made of C, O, F, Fe, & S. Classes of Nonsilicates (see page 147) 1.Native elements-made of only 1 element 2.Halides 3.Sulfates 4.Carbonates 5.Oxides 6.Sulfides Unit 3 Lesson 1 Minerals

6 Name That Mineral! Properties of minerals 1.Color 2.Streak 3.Luster-light reflection 4.Cleavage-split along planes of weakness to form smooth, flat surfaces 5.Density 6.Hardness-resistance to being scratched 7.Magnetism Unit 3 Lesson 1 Minerals

7

8 Rock-combination of 1 or more minerals or organic matter, can be made of noncrystalline material Rock Classification 1.Composition – makeup 2.Texture- size, shape & positions of grains

9 Classified Information! Igneous rock- forms when magma cools and hardens. It forms on or beneath Earth’s surface. 1.Intrusive- magma intrudes, or pushes into surrounding rock below Earth’s surface, and cools. (i.e. course grain texture) 2.Extrusive-when lava erupts, or extrudes, onto Earth’s surface (i.e. fine grain texture) Unit 3 Lesson 2 The Rock Cycle

10 Lay It On! Copyright © Houghton Mifflin Harcourt Publishing Company Sedimentary rock- forms when sediment from older rocks or minerals that form from solutions get pressed and cemented together. Formed by the following processes 1.Weathering 2.Erosion 3.Deposition 4.Burial 5.Cementation. Unit 3 Lesson 3 Three Classes of Rock

11 Sedimentary Classifications 1. Clastic –buried, compacted & cemented together by calcite or quartz (conglomerate, sandstone, shale, and siltstone) 2. Chemical-forms when water, which usually contains dissolved minerals, evaportes (rock salt, flint, iron ore) 3. Organic-forms from the remains, or fossils, of once-living plants & animals (limestone, coal, oil shale)

12 The Heat Is On! existing rock Metamorphic rock-forms when pressure, temperature, or chemical processes change existing rock. Unit 3 Lesson 3 Three Classes of Rock Foliated- occurs when pressure causes the mineral grains in a rock to realign to form parallel bands Nonfoliated – do not have mineral grains that are aligned in planes or bands

13 Unit 3 Lesson 2 The Rock Cycle


Download ppt "Unit 3 Minerals and Rocks The Big Idea: Minerals and rocks are basic building blocks of Earth and can change over time from one type of mineral or rock."

Similar presentations


Ads by Google