Chemistry Instructional Guide

Chemical Reactions

Chemistry

Quarter 3

HMHUnit 4

RESOURCES

PACING

Total Days: twenty-three 70-80 minute days ● Lesson1: 6 days ● Lesson2: 6 days ● Lesson3: 8 days

Unit 4: Chemical Reactions ● Anchoring Phenomena/Unit Project: Modeling Heating Effciency ● Lesson 1: Observing and Modeling Chemical Reactions

● Lesson 2: Analyzing Chemical Reactions ● Lesson 3: Modeling Chemical Reactions

● Testing: 3 days

STANDARD

LEARNING PROGRESSIONS

● I am learning to evaluate systems in chemical reactions. ● I am learning to explore the conservation of mass. ● I am learning to model chemical reactions. ● I am learning to model the conservation of mass. ● I am learning to quantify matter in chemical reactions. ● I am learning how to analyze chemical reactions via limiting and excess matter. ● I am learning how to analyze chemical reactions via a case study of greenhouse gas emissions. ● I am learning how to analyze chemical reactions via gravimetric analysis. ● I am learning how to investigate thermal energy andheat. ● I am learning how to measure the energy in food. ● I am learning how to explore reaction energy. ● I am learning how to investigate energy in chemical reactions via a case study in fuel energy.

Standard CHEM.3.2 Analyze data to identify patterns that assist in making predictions of the outcomes of simple chemical reactions. Emphasize patterns based on the outermost electrons of atoms, trends in the periodic table, and knowledge of chemical properties. Examples could include reactions between main group elements, combustion reactions, or reactions between Arrhenius acids and bases. (PS1.B) ​ Standard CHEM.3.4 Use mathematics and computational thinking to support the observation that matter is conserved during chemical reactions and matter cycles. Emphasize that chemical reactions occur on both small and global scales, and that matter is always conserved. Examples of small scale reactions could include ratios of reactants and products in a single chemical reaction or simple stoichiometric calculation. Examples of global scale matter cycles could include tracing carbon through the chemical reactions of photosynthesis, combustion, or respiration. (PS1.B)