Three Types Of Rock Ppt

Do Now: Observe the specimen on your desk 1.What is the specimen called 2.Describe all its characteristics such as color, texture, size, hardness. 3.Just by looking at your specimen can you tell how it was formed?

Big Idea # 8: • Essential Question 1: What are the three types of rocks? How do they form? • Essential Question 2: What is the difference between intrusive and extrusive rocks? • Essential Question 3: How do rocks get recycled by the earth processes? • Essential Question 4: How does a rock compare to a mineral?

Chapter 5 Rocks Classifying Rocks

Cornell Notes: Rocks Question/ Vocabulary •

What characteristics are used to identify rocks?

Notes

•When studying a rock sample, geologists observe the rock’s •Color •Texture •Determine its mineral composition

Cornell Notes: Texture Question/ Vocabulary •

How can we use texture to describe rocks?

Notes

•The terms used in rock description are: Grain size Fine-grained Coarse-grained Grain shape Smooth Jagged Grain pattern banded nonbanded

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Figure 3Texture helps geologists classify rocks. Forming Operational Definitions – Looking at the rocks below, describe the characteristics of a rock that help you define what a rock’s “grain” is.

Cornell Notes: Rocks Question/ Vocabulary •

What are the three major groups of rocks?

Notes

•Igneous rock •Sedimentary rock •Metamorphic rock • • •

Cornell Notes: Rocks Question/ Vocabulary •

What are the Igneous Rocks?

Notes

•Igneous rock Forms from the cooling of molten rock – either magma below the surface or lava at the surface •

Cornell Notes: Rocks Question/ Vocabulary •

How do scientists classify Igneous Rocks?

Notes

Igneous rocks are classified two different ways: 1.Where they were formed 2.What they are made from (mineral composition) •

Cornell Notes: Rocks Question/ Vocabulary •

Intrusive Igneous Rocks

Notes

•Igneous rocks that form below the Earth’s surface are called intrusive igneous rocks (or plutonic). •

Cornell Notes: Rocks Question/ Vocabulary •

Extrusive Igneous Rocks

Notes

•Extrusive igneous rocks, or volcanics, form when magma makes its way to Earth's surface. The molten rock erupts or flows above the surface as lava, and then cools forming rock. •

Do Now: Answer Questions in notebook 1. In your own words define Igneous Rock? 2. Describe what an Igneous Rock will look and feel like? 3.What is one example of a Igneous Rock?

Cornell Notes: Rocks Question/ Vocabulary •

What are sedimentary rocks?

Notes

•Sedimentary rock Forms when particles of other rocks or the remains of plants and animals are pressed and cemented together Forms below the surface

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Cornell Notes: Rocks Question/ Vocabulary •

What are sedimentary rocks?

Notes

•Igneous rocks are the most common rocks on Earth, but because most of them exist below the surface you might not have seen too many of them. •75 percent of the rocks exposed at the surface are sedimentary rocks.

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Cornell Notes: Rocks Question/ Vocabulary •

What are Metamorphic Rocks?

Notes

Metamorphic rock

•Forms when an existing rock is changed by heat, pressure, or chemical reactions •Most metamorphic rock forms deep underground

•Forms when particles of other rocks or the remains of plants and animals are pressed and

Foldable (Front Cover) Vocabulary Mineral Igneous Rocks Sedimentary Rocks Metamorphic Rocks

Definitions

Foldable (Inside) Examples/ sketches

Characteristics Vocabulary and formation Crystal Gem Ore Extrusive Intrusive Detrital Rocks Chemical Rocks Organic Rocks Foliated Non Foliated

Definitions

Do Now: Answer questions below 1.When magma undergoes crystallization above ground, what type of rock results? – – – –

A. Intrusive igneous rock B. Extrusive igneous rock C. Metamorphic rock D. Sedimentary rock

• Which of the following rock types form from placing other rocks under heat and pressure? – – – –

A. Sedimentary rock B. Metamorphic rock C. Intrusive igneous rock D. Extrusive igneous rock

Cornell Notes: Rocks Question/ Vocabulary •

What processes make & destroy rocks?

Notes

•Geological processes such as erosion & deposition influence the type of rock that is formed on Earth’s surface •

Cornell Notes: Rocks Question/ Vocabulary •

What is Sediment?

Notes

•small particles (usually dirt) that was suspended in water and has settled to the bottom

Cornell Notes: Rocks Question/ Vocabulary •

What is Erosion?

Notes

•is the process of removing sediment from its original location. Usually carried away by water or air; (it is displaced

Question/ Vocabulary •

What is Deposition?

Notes

•is the sediment that is carried away (or displaced) by erosion, is dropped off in a new location.

Feeling the Heat & Pressure • Sediment that is buried, can be squeezed by weight of layers on top of it to form sedimentary rock. • When the pressure & temperature is high enough, the rock can change into metamorphic rock. • If the rock gets hot enough inside the earth, the rock melts. The melted rock becomes magma; which then cools & forms igneous rock.

Parent Rock

Granite

Shale

Sandstone

Daughter Rock

Gneiss

Slate

Quartzite

When a parent rock experiences EXTREME heat and pressure, it morphs into a new rock.

Igneous Rock

cooling melting

Weathering

Magma Heat & pressure

sediment

melting

Compaction & cementation

Weathering Metamorphic Rock Weathering

Heat & pressure

Sedimentary Rock

Draw the rock cycle in your notebook

Cornell Notes: Rock Cycle Question/ Vocabulary •

What is the rock cycle?

Notes

•The Rock Cycle refers to the constant sequence of one type of rock turning into another. •

Click Here for an Animation that Fur

Rock Cycle Project: Due Monday • Make a children’s book about rocks. Book should cover the 3 different type of rocks, how they are formed, how they are classified, examples of each type, and the rock cycle. Have both words (text) and pictures (drawn and colored or pictures). Try to put it into a story rather than a science text book format. • Write a 3+ page report about 1-2 rocks/minerals. Research the rock/mineral on the web. Describe what type of rock it is, how it was formed, what it’s uses are, how/if it is mined, location, trade value/ worth, and what it looks like. Include a bibliography “Time New Roman 12 inch font if