Rocks Rock Mineral and Rock Vocabulary Rock Rock

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Rocks, Rock! Mineral and Rock Vocabulary

Rocks, Rock! Mineral and Rock Vocabulary

Rock • Rock is a solid mixture of crystals of one or more minerals

Rock • Rock is a solid mixture of crystals of one or more minerals • Rocks are categorized into 3 types on how they are made • Each rock in each category is classified (named) by its TEXTURE and COMPOSITION

Igneous Rock • Definition: Igneous rock is rock formed when magma cools and solidifies

Igneous Rock • Definition: Igneous rock is rock formed when magma cools and solidifies into rock. (Rock from Volcanoes) • Extrusive vs. Intrusive – Intrusive Rock- When magma cools slowly under the earths surface- causing large grained rocks – Extrusive Rock- when magma erupts from a volcano it is called lava, lava cools quickly causing fine (small) grained rocks • Felsic vs. Mafic – MAFIC: Low silicon level rocks which are dark colored rocks – FELSIC: High silicon level rocks which are light colored rocks

Igneous Rock Examples- special features Felsic- Mafic Extrusive Grain size-formed outside quickly Pumice Obsidian

Igneous Rock Examples- special features Felsic- Mafic Extrusive Grain size-formed outside quickly Pumice Obsidian Basalt Intrusive Grain Size-formed inside slowly Granite Gabbro

Review Time • Turn to your neighbor and explain to him/her what igneous rock

Review Time • Turn to your neighbor and explain to him/her what igneous rock is, and what the 4 types of igneous rock are. • How are rocks grouped (3 ways)

Quiz Time • Which of the following best describes this rock • • A

Quiz Time • Which of the following best describes this rock • • A Extrusive Mafic B Intrusive Mafic C Extrusive Felsic D Intrusive Felsic

Sedimentary Rock • Definition: Rocks that form when sediments are compacted and cemented together

Sedimentary Rock • Definition: Rocks that form when sediments are compacted and cemented together • Sediments are small fragments of rock –like sand • Rocks must go through several steps before they become sedimentary – Weathering – Erosion – Deposition – Compaction and Cementation aka lithification

Sedimentary Rock Examples and Clastic- rock special features fragments Chemical- minerals and water Organic-

Sedimentary Rock Examples and Clastic- rock special features fragments Chemical- minerals and water Organic- Made from shells, skeletons, fossils and minerals Conglomerate- large fragments Sandstone medium sediment Chemical limestone Fossiliferous limestone

Quiz Time • • • What is the best description of this rock? A

Quiz Time • • • What is the best description of this rock? A Clastic Sandstone B Clastic Conglomerate C Organic fossiliferous limestone D igneous rock

Review Time • Turn to your neighbor and tell them the difference between sedimentary

Review Time • Turn to your neighbor and tell them the difference between sedimentary and igneous rock.

Metamorphic Rock • Definition: Rock that forms when the texture and composition of preexisting

Metamorphic Rock • Definition: Rock that forms when the texture and composition of preexisting rock changes due to heat or pressure.

Fast Five Quiz • Go as quickly, and as safely as you can to

Fast Five Quiz • Go as quickly, and as safely as you can to the right corner. The following words are associated with what kind of rock? • A Sedimentary Rock • B Metamorphic Rock • C Igneous (Extrusive) • D Igneous (Intrusive)

Energy and the Changing earth • We talked about how energy changes in food

Energy and the Changing earth • We talked about how energy changes in food pyramids and food webs, and how that affects living organisms. Refresh: ______________ • now lets talk about energy and how earth’s rocks are affected- what is chemical/mechanical energy?

Rock cycle

Rock cycle

Decision Time • Where and how can you see chemical/mechanical energy in this new

Decision Time • Where and how can you see chemical/mechanical energy in this new system? • Now that you have seen some examples of rocks, and you have seen the rock cycle. If you wanted to build a strong, long lasting monument to yourself for the world to see what type of rock would you use and why?

Weathering • Definition: breakdown of rock into smaller and smaller fragments.

Weathering • Definition: breakdown of rock into smaller and smaller fragments.

Mechanical Weathering • Mechanical weathering: The breakdown of rocks by physical means- by ice,

Mechanical Weathering • Mechanical weathering: The breakdown of rocks by physical means- by ice, wind, water force, gravity, abrasion

Chemical Weathering • Chemical weathering: the breakdown of rocks by chemical means into new

Chemical Weathering • Chemical weathering: the breakdown of rocks by chemical means into new substances- by soil, water, weak acids,

Erosion • The removal and transport of sediment and material by wind, water or

Erosion • The removal and transport of sediment and material by wind, water or ice (glaciers)

Deposition • Definition: Depositing sediments, or the laying down of sediments from movement.

Deposition • Definition: Depositing sediments, or the laying down of sediments from movement.

Compaction and Cementation • Definition: The squeezing and solidifying (gluing) of sediments together to

Compaction and Cementation • Definition: The squeezing and solidifying (gluing) of sediments together to finally become rock.

Magma

Magma