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Ch. 2  ppt icon Presentation
Ch. 6  pptx icon Presentation
Ch. 7 Chemical Reactions  ppt icon Presentation
Work and Energy  ppt icon Presentation
Physical and Chemical change  ppt icon Presentation
Ch.5 Periodic Table  pptx icon Presentation
Ch. 11 Motion   pptx icon Presentation
Ch. 4  ppt icon Presentation