PPT-Unit 7: Chemical and Physical Changes & Balancing

The Digestive System Amazing Facts We make 13 pints of saliva a day The average male will eat about 50 tons of food to sustain weight of 150 pounds A horses intestines are about 89 feet long. page 133. Physical Change. Any change in size, amount, shape, . or state/phase . of matter.. nothing new is created. Ex.) melting a block of ice, cutting a piece of paper in half. Chemical Change. substances change . perfume evaporating on your skin . perfume evaporating on your skin . physical.  butter melting .  butter melting . physical. wood rotting.  . wood rotting.  . chemical. autumn leaves changing color. Mrs. Lowe . April 2011. Chemical changes . Chemical change . is a change that forms a new type of matter . Chemical property . is a feature of matter that can cause a chemical change. Examples of a different type of matter forming during a chemical change. 1.7. Physical Changes. Physical Change. : the substance involved remains the same, even though it may change state or form. . Examples: . Dissolving – stirring a spoonful of sugar in water. Melting –an ice cube melts. I can identify the products and reactants in a chemical reaction.. I can state the law of conservation of matter.. I can determine the number of each atom in a compound based on subscripts and coefficients.. Chemical and Physical Changes Lab. Chemistry GT 9/21-22/15. Drill. Look at the line graphed over there . . What property does its slope represent?. Calculate the slope.. HW: . Chem. & . Phys. EQ: How are changes in matter related to changes . in energy?. Changes in Matter. You are at the beach. You built a sandcastle!. You notice storm clouds gathering in the distance.. You are sad : (. You know your sandcastle is about to go bye-bye.. Blue Color. Blue Color. Physical property. Density. Density. Physical property. Flammability. Flammability. Chemical property- The original substance is fundamentally changed. . Solubility- (dissolves into a liquid to make a solution). Physical and chemical changes. I. Physical change. A. Does not change the matter. Thermal conductivity. : the rate at which a substance transfers heat. State. : the physical form in which a substance exists, such as solid, liquid or gas. This tutoring session is designed to help anyone who is struggling balancing equations. Remember!. Matter can never be created nor can it be destroyed (Theory of conservation of matter). This means that whatever elements go into a chemical equation (Reactants) must also come out of the chemical equation (Products). Changes. The Difference. Physical Change . – . matter changes form . but is still made of the same molecules, typically . reversible. Chemical Change . – a . change in the molecules . occurs, . cannot be reversed. EQ: How are changes in matter related to changes . in energy?. Changes in Matter. You are at the beach. You built a sandcastle!. You notice storm clouds gathering in the distance.. You are sad : (. You know your sandcastle is about to go bye-bye.. 10.1 . Reactions and . Equations. Evidence of Chemical Reactions. ..  . The process of which the atoms of one or more substances are rearranged to form different substances is called a . Chemical Reaction. Density. A liquid becomes a gas. .. Burn bacon in the pan. .. Magnetic. Bake . cupcakes. Burning . leaves. Reactivity. Blue Station. Define the following terms.. Matter. Physical Change. Chemical Change.