The Rock Cycle The Rock Cycle is the
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The Rock Cycle
The Rock Cycle …is the natural process that rocks in the Earth's crust go through, that involves them continuously transforming into igneous, sedimentary, and metamorphic rocks.
What is a Rock? • Naturally Occurring (not man made) • Solid • Mixture of minerals and organic matter
What makes a rock different from a mineral? Rock Both Mineral Made of one or more minerals Solid Made of 1 type of element Random crystal or no crystal structure Naturally Occurring Orderly crystal structure Quartz Granite = Feldspar Muscovite
Types of Rocks Metamorphic: Gneiss Sedimentary: Sandstone Igneous: Diorite
Igneous Rocks
Igneous Rocks are formed from Magma and Lava Igneous rocks are classified by where they form Intrusive forms when magma cools in the Earth vs. Extrusive forms when lava cools on Earth’s surface
Intrusive Vs. Extrusive Diorite Granite Basalt Pegmatite Gabbro Rhyolite Andesite Scoria
Igneous Rocks: Crystal Size and Cooling Time Location of Rock Crystal Size Intrusive (in earth) Extrusive (earth surface) Large crystals Small crystals Longer cooling time Shorter cooling time Picture Cooling time
Sedimentary Rocks
Sedimentary Rocks form from sediment or rock particles Sediment = material that is deposited by air, water, or ice. These materials can be: ▪ tiny pieces of rock ▪ broken minerals ▪ pieces of plants and animal remains
How do sedimentary rocks form? • Sediments pile on top of each other on land or in water. • As sediments pile, they become compacted and cemented together. • This forms cemented layers of sediment.
Sedimentation Process
Sedimentary Rock Layers
Sedimentary Rock Layers
Some rocks form from plants or shells • Coal- created from the remains of plants (dead wood, bark, leaves, stems, and roots) • The coal we use today started forming millions of years ago in swamps • Limestone- created from the shells and skeletons of ocean organisms.
Limestone Formation
Metamorphic Rocks
Metamorphic Rocks Extreme heat and pressure can change rocks. • The original rock is called the parent rock • The new rock formed is called the metamorphic rock • Heat and pressure change the structure of the parent rock and their minerals recrystallize
Examples of Metamorphic Rocks Extreme heat and pressure Parent Rock Shale Metamorphic Rock Slate
Examples of Metamorphic Rocks Extreme heat and pressure Parent Rock Limestone Metamorphic Rock Marble
Examples of Metamorphic Rocks Extreme heat and pressure Parent Rock Mica Metamorphic Rock Phyllite
A little bit more about igneous rocks… Granite Rhyolite
IGNEOUS ROCKS BASALT GABBRO
Composition of Igneous Rocks Igneous rocks are mainly composed of silicate minerals (quartz, feldspar, etc. ) • Rocks with high silicate levels-are typically light in color • ex: granite, rhyolite • Rocks with low silicate levels- dark in color • ex: gabbro and basalt
Igneous rocks make long-lasting landforms 1. Intrusive rock formations-as magma pushes up toward Earth’s surface, it makes channels and other formations underground. 2. Extrusive rock formations • builds plateaus when erupting from long crack • gently sloping volcanoes (Hawaiian islands) • cone-shaped volcanoes (1). contains greater amount of silica (2). erupts explosively (3). Mount St. Helens is an example
RECAP: • Rock cycle-the set of natural processes that form, change, break down, and reform rocks
When a rock forms, does it stay that way forever? NO!!!!!! Rocks are always changing by processes like: • Weathering • Melting • Erosion • Cooling • Compaction • Cementation
Our world is built of rocks Rocks have many purposes 1. used to build houses and skyscrapers 2. great source of metals 3. used to carve statues and other works of art
11. Rock Cycle
Rock Cycle animation
- Rock cycle
- Rock cycle
- Igneous rock to metamorphic rock
- Bungee climbing
- Chapter 3 standardized test practice answers
- Chapter 3 standardized test practice answers
- Metamorphic rock to sedimentary rock
- Rock cycle comic strip
- Rock cycle song for kids
- Sedimentary rock properties
- Rock cycle jeopardy
- Song about igneous rocks
- Rock cycle explanation and diagram
- Kesler rock cycle
- Types of rocks foldable
- Rock cycle coloring
- Map of igneous rock
- Rock cycle doodle notes
- Jeopardy rock cycle
- Chapter 4 section 3 sedimentary rock answer key
- Lesson 2 the rock cycle answer key
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- Deformation rock cycle
- How does soil link the rock cycle and biosphere
- Transportation in rock cycle
- Rock cycle ngss
- Rock cycle project
- Limestone rock cycle
- Rock cycle
- Igneous rock comic strip
- It was a sedimentary rock song
- Rock cycle
- Learner.org rock cycle