8 Sediments- broken rock materials; may also contain plant and animal matter.
9 Weathering- 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.
10 Compaction- process where the upper layers put pressure on the lower layers causing small sediments to stick together
11 Cementation- a solution of minerals and water seeps between large sediments and "glues" them together.
12 Sedimentary Rock Characteristics Flat or curved layersParticle size may be the same or varyUsually has pores between pieces
47 Characteristics of Minerals Must be a solidMust occur in natureChemical compositionCrystalline structureMust be inorganic
48 Characteristics of Rocks Mixtures of different types of mineralsMay contain organic materialsMany rocks are not solid (magma)Naturally occurring
49 Rock/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?
50 Analyze 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?
51 Exit TicketHow are rocks and minerals different?