PPT-Chemical change or

Chemical change or Physical change Elephant Toothpaste Physical or Chemical The yeast acts as a catalyst to make the hydrogen peroxide break down really quickly Hydrogen peroxide breaks down into. Chemical Butyl Acetate Chemical Butylated Hydroxytoluene Chemical Coal ar Chemical Cocamide DEALauramide DEA Chemical Diazolidinyl Urea Chemical Ethyl Acetate Chemical Formaldehyde Chemical P 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. Matter. Every element/compound is unique in some way from all others.. If you know enough about a substance, you can figure out what it is.. If you know what a substance is, you can know all types of things about it.. and. Changes. By Jordan Parkinson. What are some Physical Properties?. Appearance – O. utward . or visible aspect of a person or thing. . Color - A. . visual attribute of things that results from the light they emit or transmit or reflect. Theme: . Changes and Reactions . LecturePLUS Timberlake. 2. color. melting point. boiling point. electrical conductivity. specific heat. density . state (solid, liquid, or gas). . 10/20/14. What are Physical Properties?. Physical properties can be . observed. and measured without changing the . identity. of the substance. . Phase. Changes: . Melting. Point: the temperature at which a substance . . October 14, 2014. . Ms. Smith. Mrs. . Malone. DO NOW. :. Date. : . October 14, 2014. TEKS: . 6.8B calculate density to identify an unknown substance. Get out your . gold Do Now sheet. Put your . CB and agenda on your desk. or . Physical change. ?????. Elephant Toothpaste. Physical or Chemical? . The yeast acts as a . catalyst. to . make the hydrogen peroxide break down . really quickly. . Hydrogen . peroxide breaks down into . 1-12-16. Bell Work 1-12-16. When air is heated, it expands and rises. Hot-air balloon pilots use this phenomena to their advantage. These pilots use a gas-flame blower to increase the temperature of the air inside the balloon making the balloon rise. . Property. Is a description of an object. The tree is TALL. The tree is GREEN. If struck by lighting, the tree could catch FIRE (BURN). Physical Properties. Are determined by the use of the . . . . Chemical Property. describes the ability of a substance to undergo changes in identity. Chemical Change. changes the identity of a substance. products have different properties. Signs of a Chemical Change. Chapter 2 Section 2. Describing matter. Matter: anything that has mass and takes up space. Mass – the amount of matter in something. Volume – the amount of space something occupies. Which of the following is matter?. Physical Property. Physical property = a characteristic of matter that can be . observed or measured . without changing the identity of the substance. . Ex: . mass volume . density hardness. color malleability. 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.