Presentation on theme: "FAB-U-LOUS FRIDAY!!! Get out page 10 Cornell Notes for me to check Get out page 8 Determination of the Density of Pennies LAB to turn in You need a writing."— Presentation transcript:
FAB-U-LOUS FRIDAY!!! Get out page 10 Cornell Notes for me to check Get out page 8 Determination of the Density of Pennies LAB to turn in You need a writing utensil that is DIFFERENT COLOR from the one you used to write your Cornell Notes EVERYTHING ELSE ON THE FLOOR!!! Lab fee or paper towels anyone?????
MANIC MONDAY 9/8 Get out any late papers to turn in: Density penny lab Graphing WS Cornell Notes Any lab fees/Kleenex/paper towels? Did you grab the pages on the way in the door?
Physical Change A change which alters a given material without changing its composition nothing new is created A + B AB
Physical Change Physical Changes Any phase/state change Dissolving of a solid Crushing of a solid – change in size/shape Thermal pollution (temp of lake rises killing fish)
Chemical Change aka (Chemical Reaction) Change that occurs when one or more substances change into new substances A + B Q
Chemical Change Rusting of iron Photosynthesis Digestion Combustion
Chemical Change Clues that a chemical reaction is occurring: Energy is absorbed / given off (heat or light) Change in color or odor Production of a gas or solid from a liquid Not easily reversible Something NEW produced that does NOT look like the starting reactants A + B Q !!!