Student Objective Identify the indicators that a chemical change/reaction has occurred. Warm Up Physical or Chemical Change? WHY? Chopping wood Baking cookies

Send one person from your table to get goggles for the table. Work with your table to visit each of the lab stations. (Switch when Mrs. Kelly tells you) At each station follow the directions in your packet & record your results/answers. Do NOT do the last page of the packet until after Mrs. Kelly tells you.

Name: ____________________ Class: ____________________ Vocabulary: Chemical Equation – Reactants – Products – A chemical reaction occurs when two or more chemical substances are combined together. This means that the atoms that were joined together in the reactants ____________ ____________ then ____________ themselves and ____________ to make a __________ _____________. One or more of the reactants may be transformed into one or more new products. These new products are quite __________ from the original reactants. 5 Signs of a Chemical Reaction: 1. (T) _____________ 2. (C) _____________ 3. (G) _____________ 4. (L) _____________ 5. (P) ____________ Complete this worksheet using the following 3 slides.

Name: ____________________ Class: ____________________ Vocabulary: Chemical Equation – Reactants – Products – A chemical reaction occurs when two or more chemical substances are combined together. This means that the atoms that were joined together in the reactants ____________ ____________ then ____________ themselves and ____________ to make a __________ _____________. One or more of the reactants may be transformed into one or more new products. These new products are quite __________ from the original reactants. 5 Indicators of a Chemical Reaction: 1. (T) _____________ 2. (C) _____________ 3. (G) _____________ 4. (L) _____________ 5. (P) ____________

Chemical Equation – Using symbols to summarize a chemical reaction. Reactants – Materials at the beginning of a chemical reaction. Products – Materials at the end of a chemical reaction.

Chemical Reactions: A chemical reaction occurs when two or more chemical substances are combined together. This means that the atoms that were joined together in the reactant break apart then rearrange themselves and reconnect to make a new substance. One or more substances may be transformed into one or more new substances. This new substance is quite different from the original substances. Reactant + Reactant ----> Product Some products of chemical reactions are heat, light, sound and changes in color.

Chemical reactions create new substances. But, how do you know a new substance was formed? Light Produced Color Change Precipitate Temperature Change Gas Produced

Discovery Education: Fizz, Foam & Flames “ESC” button on keyboard Double click “Computer” icon Go to student apps R drive Double click on Discovery Click on Assignments Click on Fizz Foam & Flames Complete worksheet