Chemical+and+Physical+Changes

Chemical and Physical Changes **Chapter 13 Lesson 2** (E52-E55) **Content Standard 1:** Identify evidence of chemical changes through color, gas formation, solid formation, and temperature change.

1. If you place a pan containing liquid cake batter into a hot oven, how will you know that a chemical reaction takes place? 2. If you mix two liquids which are the same temperature together in a glass and a thermometer in the glass shows that the temperature increases by several degrees, explain what type of change you see. 3. You go out to put your banana peals into a compost pile. Tell how you know that you are seeing a chemical change. 4. Give five examples of chemical changes. 5. If you put a rusty metal hook in a mixture of vinegar and water and the rusty metal hook becomes shiny, determine you have just observed. 6. When you place a solid effervescent (seltzer) tablet into a liquid, explain how you know that a chemical change has occurred. 7. Create a list of indicators that a chemical change has occurred.

= Let's explore chemical and physical changes! = [|Bill Nye Chemical Reactions Part 1] [|Part 2] [|Part 3] [|Soda and Mentos] [|Salt andIce Cream] [|Home Run!] [|Ping Pong Champ] [|Study Jam: Chemical and Physical Changes]


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