8Sediments- broken rock materials; may also contain plant and animal matter.
9Weathering- the breakdown of rock by wind and water Weathering- the breakdown of rock by wind and water. Erosion-is the transporting of the broken rock material, or sediments, to a new location, where it is deposited.
10Compaction- process where the upper layers put pressure on the lower layers causing small sediments to stick together
11Cementation- a solution of minerals and water seeps between large sediments and "glues" them together.
12Sedimentary Rock Characteristics Flat or curved layersParticle size may be the same or varyUsually has pores between pieces
47Characteristics of Minerals Must be a solidMust occur in natureChemical compositionCrystalline structureMust be inorganic
48Characteristics of Rocks Mixtures of different types of mineralsMay contain organic materialsMany rocks are not solid (magma)Naturally occurring
49Rock/Mineral Data Table SampleColorTexture (Fine or Coarse)Shiny or DullSmooth or RoughLooks like glass or metalSize (in. or cm.)Rock Group (igneous, metamorphic, sedimentary)Mineral?
50Analyze and ConcludeUse your samples and table to answer the following questions.Which of the samples could be a mineral? What physical properties do they share with the other samples? How are they different?What properties were most useful in classifying the samples? Why?
51Exit TicketHow are rocks and minerals different?