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Rock Cycle:Learner Interactive http://www.learner.org/interactives/rockcycle/index.htmlStudy Jams http://studyjams.scholastic.com/studyjams/jams/science/rocks-minerals-landforms/igneous-rocks.htmMcDougal Littal http://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page01.cfmGeologic History of Pennsylvania http://www.dcnr.state.pa.us/cs/groups/public/documents/document/dcnr_014597.pdf(pg 27 color-coded map geologic history of Pa)Geology of Pennsylvania http://dcnr.state.pa.us/topogeo/field/index.htmSoils:USGS Introduction to Soils (notes): USGS Introduc. to Soils notesGeology notes, Bozeman video (11:03) http://www.youtube.com/watch?v=acwSG17e_lQSoil Stories, The Whole Story (history, characteristics, identify...) (30:00) http://www.youtube.com/watch?v=Ego6LI-IjbYLiving Rock, An Introduction to Earth's Geology (57:05) http://www.youtube.com/watch?v=-iMfVcQwPWM&list=PLQHCotXFsuvTLq00yue1u3Mp7iqPCT-nlDiscovery Channel, Geologic History of the Grand Canyon (44:02) http://www.youtube.com/watch?v=cN6-cAUm0X8History of Earth, (1:30:00) http://www.youtube.com/watch?v=57merteLsBcSoil is Made of... (1:27) http://www.youtube.com/watch?v=Y1B1FtHL10kHow Do Soils Form? (Soil Science Society of America) http://www.soils.org/discover-soils/soil-basics/how-do-soils-formHow to Differentiate and Identify Soil Horizons in the Field (12:02, after Intro., skip to 4:25) http://www.youtube.com/watch?v=ZlyDyQT6_WEHumus, The Essential Ingredient, TEDEd (19:49) http://www.youtube.com/watch?v=8Q1VnwcpW7EJohn Crawford: Healthy Soil, Healthy World (TED Ed, 5:52) http://www.youtube.com/watch?v=zTgH16omrJgSoil - Smithsonian National Museum of Natural History (several links, incl. Chefs Challenge video) http://forces.si.edu/soils/Soil, National Geographic: http://ngm.nationalgeographic.com/2008/09/soil/mann-textPlant Nutrients: http://www.ncagr.gov/cyber/kidswrld/plant/nutrient.htmThe Color of Soil (article) http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/edu/?cid=nrcs142p2_054286Soil Texture by Feel (silent demonstration video, 4:04) http://www.youtube.com/watch?v=GWZwbVJCNecSoil Texture by Feel (USDA agronomist, 3:48) http://www.youtube.com/watch?v=W0osjN0t-HoFive Factors of Soil Formation (9:27) use with notes, Soil Background to Understand Physical Factors! http://www.youtube.com/watch?v=bTzslvAD1EsGermination ExperimentA SOW, GROW, AND KNOW CHALLENGE: UNIT OVERVIEW