Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Entry Task Monday, October 19th Decide if the following statements are true or false. If true, write them down as is. If false, write down a corrected statement. 1. Sedimentary rocks form from older rocks. 2. Most sedimentary rock is found at the surface of Earth’s crust. 3. Some sedimentary rocks form as loose materials get cemented together. Schedule: • Sedimentary Rocks Objective: I can understand that sedimentary rocks form from earlier rocks Homework: • Read/RSG 3.4 Please have on your desk: • 3.3 RSG Tuesday, October 20th Entry Task Schedule: • Metamorphic Rocks Answer the following question Objective: I can understand using full sentences, IQIA. that metamorphic rocks form as existing rocks change 1. What conditions can cause a sedimentary or igneous Homework: rock to change into a • Chapter 3 Review only the metamorphic rock? first page (#1-11) 2. How do new minerals grow within existing rocks? Please have on your desk: 3. Why do bands of minerals • 3.4 RSG develop in most metamorphic rocks? Wednesday, October 21st Entry Task 1. 2. 3. 4. Schedule: • Rock Vocabulary Write down the big • Rock Review idea for chapter 2 Objective: I can understand Write down the important terms associated with rocks key concepts for Homework: each section in chapter 2 • Chapter 3 (rock) review due Write down the big tomorrow idea for chapter 3 • Chapter 2/3 Test on Tuesday Write down the 10/26!!! key concepts for Please have on desk: each section in chapter 3 • Rock Review Chapter 3 Vocabulary WordsHighlight the following words and their definitions in your notebook. ISN pages 48-57 • • • • • • Rock Rock cycle Igneous rock Sedimentary rock Metamorphic rock Intrusive igneous rock • • • • • Extrusive igneous rock Sediment Metamorphism Recrystallization Foliation Thursday, October Entry Task • You will be taking rock notes today. • Grab a note packet up at the front desk. • Glue it into your notebook on page 59 nd 22 Schedule: • Rock Notes Objective: •I can understand important information about rocks Homework • On page 60 in your notebook: copy the diagram from page 107 in your textbook. Answer questions 1-8. Write out the entire question, and the entire answer. I do not want to see #1: C Please have on desk: • Chapter 3 review will be stamped tomorrow ROCKS • A Rock is a naturally formed solid that is usually made up of one or more types of minerals ROCKS vs. Minerals Rocks 1.Proportions of minerals vary 2. Minerals can be jumbled together 3.None to 1 or more minerals can be present Minerals 1. Is the same elements in the same proportions 2. There is an orderly crystal structure Examples of Rocks Rocks with no minerals OBSIDIAN – glass like and does not have a crystal structure 1 or more minerals LIMESTONE- can be made entirely of calcite COAL- is made of dead plants GABBRO- made of several types of minerals Our world is built of rocks Rock is so common and has many purposes They last a long time 1. Building houses and skyscrapers 2. Sources of metal like iron aluminum and copper 3. Carvings of statues and art 4. Pavement on roads and highways Ancient structures, monuments and sculptures were made from rock • Great wall of china • Pyramids in Egypt • Mount Rushmore Rocks change as they move through the rock cycle The Rock cycle is a set of natural processes that form, change, and break down, and reform rock. • • • • Rocks are classified by how they form There is no particular order to the rock cycle There is no beginning and no ending These changes take thousands to million of years TYPES OF ROCKS page 79 1. IGNEOUS- Forms when molten rock cools and becomes a solid (lava and magma) 2. SEDIMENTARY- Forms when pieces of older rocks, plants, and other loose materials are pressed together at the earths surface (weathering and erosion) 3. METAMORPHIC- Forms when older rocks buried deep in the crust change into new types of rock (heat and pressure) IGNEOUS ROCKS Rocks that form when molten (melted) rock cools and becomes a solid Temperatures deep within the Earth are so hot (1400 °F2300 °F) that rock will melt MAGMA Molten Rock that is below the surface of the Earth LAVA When magma reaches the surface of the Earth it is called Lava 1. Composition Igneous rocks are classified by how much silica content they have Igneous rocks are mostly made of silicate minerals (silica and oxygen) Color will give you a good estimate of the amount of Silica HIGH LEVELS OF SILICA LOW LEVELS OF SILICA Color= Light Color= Dark GRANITE BASALT RHYOLITE GABBRO 2. Origins of Igneous rocks Magma and Lava form different types of igneous rocks INTRUSIVE IGNEOUS ROCK EXTRUSIVE IGNEOUS ROCK One that forms when magma cools within the Earth (INside) One that forms when lava cools on Earth surface (EXterior) Granite Rhyolite Pumice same composition Same composition Gabbro Basalt 3.TEXTURE- the size of its mineral crystals -Depends on how fast the magma or lava cool Intrusive- Stay below the Earth Extrusive- At the surface LARGE CRYSTALS FORM FROM MAGMA 1. The interior is very hot 2. High temperature allows for slow cooling 3. Slow cooling allows time for LARGE CRYSTALS SMALL CRYSTALS FORM FROM LAVA 1. The surface is cooler than inside Earth 2. Low temperatures cause lava to cool fast 3. There is no time for large crystals to form ROCK FORMATIONS Igneous rocks make long-lasting landforms INTRUSIVE ROCK FORMATIONS EXTRUSIVE ROCK FORMATIONS • Magma can slowly cool inside a volcano. • Over time, wind and water can wear away surrounding rock to expose the intrusive rock. • These landforms are harder and longer lasting than other types of rocks • Lava erupts in different ways • 1. low silica lava, like basalt, flows easy in thin layers (Hawaii, Columbia Plateau) • 2. High silica lava builds steep cone shaped volcanoes and erupt explosively (Mt. St. Helens) Devils rock and Ship rock Are examples of Intrusive Rock Formations HAWAIIAN ISLANDS Low Silica lava flow form extrusive rock formation in thin layers MT. ST. HELENS High Silica Lava forms Extrusive land formation with violent erupts 3.3 Sedimentary Rocks • Some rocks form from rock particles • Most sedimentary rocks form from loose material that gets pressed together. • Sediments are materials that settle out of water or air. • Sediments can be loose pieces of rocks and minerals or even plant and animal remains. Sedimentary rocks develop layers Types of Sedimentary Rock • Made of other rock particles, classified by particles size. – Big particles (pebbles and bigger) conglomerate, puddingstone – Smaller particles – sandstone, shale, mudstone. • Made of plants or shells – Plants (formed in swamps) coal – Shells (dissolved or not) limestone, chalk 3.4 Metamorphic Rock • Heat and Pressure can change a rock • Because pressure and temperature increase with depth, rocks change more when they are buried deeper in the crust. • The deeper the rock, the more heat and pressure it is exposed to, the more it changes. Foliated vs. Nonfoliated Rocks • Foliation is an arrangement of minerals in flat or wavy parallel bands. • Foliation occurs when rocks are under pressure. – Rock must contain more than one type of mineral. • Nonfoliated rocks occur when heat and pressure are applied to rocks that contain only one kind of mineral – Limestone becomes Marble Foliated vs. Nonfoliated Rocks Friday, October 23rd Entry Task Lets review minerals1. What are the 4 characteristics of minerals? (bonus points if you can name the 5th one) 2. What are 8 properties of minerals? 3. How would you identify a mineral if you found it in nature? 4. What is something that minerals are used for? Schedule: • Mineral Identification Activity Objective • I can identify minerals based on their properties Homework: • Complete lab/activity packet Please Have on Desk: • Rock Project