![]() ![]() This portion addresses the California State Science Standard that students be able to use a "table of diagnostic properties"(4:4:b). Also discuss the three types of rocks and what their properties are. Discuss the fact they come in all different shapes, colors, and properties and that is how they are able to be told apart. Then do a little bit of lecturing on what minerals and rocks are. "So we know rocks are useful and all around us, but can any tell me what a rock or mineral actually is?" This will likely get no response, but it is good to get them thinking. Then ask "Besides small amounts for eating, are minerals and rocks useful? How?" Hopefully this will get more discussion going and you can mention they are used in tons of ways such as creating metals, making roads, glass, chalkboards, decoration, and of course they make up the entire earth itself. One good way to start is to ask, "Has anyone here ever eaten a rock or mineral?" You can inform them that of course they have when eating things like fruits and vegetables, meat, milk and salt. You ought to tell them what they are, and why they are important to people. Inform the students that today we will be talking about rocks and minerals. Introduce yourself and then ask the students "How are you doing? How is school? What are there favorite subjects?" This will be a good invitation to get the students talking and involved. Start with the students at their desks and the materials covered so there are no distractions. Magma:Molten minerals or rocks that exist under the soil and sometimes come out onto the surface in sites like volcanos. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot, mineral-rich fluids or, more commonly, some combination of these factors. ![]() Metamorphic:Metamorphic rocks started out as some other type of rock, but have been dramatically changed from their original igneous, sedimentary, or earlier metamorphic form. Igneous:Igneous rocks (from the Greek word for fire) form from when hot, molten rocks and minerals (magma) crystallize and solidify. Sedimentary rocks often have distinctive layering or bedding. They form from deposits that accumulate on the Earth's surface. Sedimentary Rock: Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. Rock cycle:The cycle in which rocks transform between Igneous, Sedimentary, and Metamorphic via the processes of the earth. Some rocks are made of the shells of once-living animals, or of compressed pieces of plants. Rock: Rocks are made up mostly of different kinds of minerals, or broken pieces of crystals, or broken pieces of rocks. In more general terms, a mineral is a substance that is (1) made of a single element like gold (Au) or a compound of elements like salt (NaCl) and (or) (2) a building block of rock (for example, granite is composed primarily of the minerals quartz and feldspar). Mineral:The technical definition of a mineral is a naturally occurring, inorganic, homogeneous solid with a definite chemical composition and an ordered atomic arrangement. One Quiz per 3-4 students (see attached). Large enough space for rock cycle exercise (about 12 by 12 feet)Ħ. Blank paper and sheets for sorting exerciseĥ. You will need one rock bag per student as they will use this for the sorting exercise.Ĥ. One small example of quartz, calcite, feldspar, mica, hornblende, and olivine all put into a Rock Bag (for organization purposes). Large examples of Igneous, metamorphic, and sedimentary rocks to show the classĢ. Igneous, metamorphic, and sedimentary rocksġ. This will best work with 15 or less students This will be done by a rock/mineral sorting exercise and an activity of having the students stand up and act out the rock cycle. Specifically they will study the rock cycle, the three main rock types (Igneous, Sedimentary, and Metamorphic), common minerals, and the connection between minerals and rocks. In this hour exercise the students will explore rocks and minerals. ![]()
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