A sedimentary rock can form one of three ways: 1. by the deposition of the weathered remains of other rocks 2. by the deposition of the results of biologic activity 3. by precipitation from solution. •Weathering - is a process in which Read: Chapter 8 2. Weathering and Erosion 2. Sediment and Sedimentary Rocks Sedimentary Rocks Rivers, oceans, winds, and rain runoff all have the ability to carry the particles washed off of eroding rocks. Characteristics of Igneous Rocks Most igneous rocks are very hard Made of crystals Layering is not common in igneous rocks Metamorphic Rocks Sedimentary and igneous rocks can become buried deep in the Earth’s crust. Deposition and Sorting 3. Lecture 7: Sedimentary Rocks 1. • Some sediments and sedimentary rocks are resources in their own right, or contain resources. Metamorphic: When igneous or sedimentary rocks come under great heat or Recall from Chapter 1 that all sedimentary particles between 1/16 mm and 2 mm When the energy of the transporting current is not strong enough to carry these particles, the Notes on Sedimentary Rocks, Weathering and Erosion- Chapter 10, 12 Name _____ Date_____Class_____ Vocabulary List (Number, write and define these words on another sheet of paper, those that have a * please illustrate, be creative!) 1.1.2 Defining what's meant by the term sandstone turns out not to be easy. Rocks Revision Notes Rock Types 1. Instead, new minerals grow and the rock remains The rock does not melt. lesson –sedimentary rocks the following video has been approved for all audiences by the earth science teachers association of america , inc the video has been rated i inteligent under 15 requires teacher assistance strong earth science language, detailed diagrams, and super awesomeness • Much of our knowledge of the evolution of life on Earth derives from fossils preserved in sedimentary rocks. Lithification ... Class Notes . Sedimentary Rocks Form Through a Process 1. Homework #7 due Thursday 12pm 3. sedimentary rocks are especially important for deciphering Earth history. Igneous: Formed when magma or lava cools and hardens e.g. Metamorphic rocks form when the buried rock is changed under high temperature and pressure. Sedimentary: Formed when sediments (old rocks, dead plant and animal remains) are compacted together e.g. 1.1.1 Sandstones are an important group of sedimentary rocks. 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