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Properties of Solutions Phenomena-Based Lesson: Instant Exothermic Freezing of Supersaturated Sodium Acetate Hot Ice Teacher Discussion Guide | Chemistry II | Grades 9–12
This is the teacher discussion guide, with lesson flow, facilitation questions, anticipated student ideas and model explanations for leading the class discussion for the Phenomena-Based Lesson in the Chemistry II (grades 9–12) chapter Properties of Solutions, built around the phenomenon Instant Exothermic Freezing of Supersaturated Sodium Acetate Hot Ice. It is sold separately from the other two parts of the set.
- What's inside: Teacher Discussion Guide (editable .docx + PDF, about 1,940 words, 7 pages); answer key / model answers for the teacher.
- Resource type: Phenomena-Based Lesson – Teacher Discussion Guide. Format: editable Microsoft Word file plus a ready-to-print PDF.
Classroom use: Open with the phenomenon slide show, let students record ideas on the response sheet, and lead the discussion with the teacher guide. Built for Chemistry II, grades 9–12.
Sample question“Why does dropping a single speck of dust into a liquid cause it to instantly freeze solid while generating intense heat?”
Complete the set: Properties of Solutions Phenomena-Based Lesson: Instant Exothermic Freezing of Supersaturated Sodium Acetate Hot Ice Presentation; Properties of Solutions Phenomena-Based Lesson: Instant Exothermic Freezing of Supersaturated Sodium Acetate Hot Ice Student Response Sheet. Scaffolded version: Properties of Solutions Scaffolded Phenomena-Based Lesson: Instant Exothermic Freezing of Supersaturated Sodium Acetate Hot Ice Teacher Discussion Guide.
Standards
NGSS High School Physical Science (HS-PS) disciplinary core ideas and the science practices of analyzing data and constructing explanations.
Opening the files
These files are delivered in Microsoft Office formats (Word and/or PowerPoint). If you open a worksheet that includes tables in Apple Pages or another non-Microsoft app, table formatting may not display correctly. For best results, use Microsoft Word or PowerPoint (or upload the file to Google Docs). If you run into any formatting issues, contact us and we can send a PDF version.
At a glance
- Resource type
- Phenomena Lesson
- Grade
- 9–12
- Course
- Science
- Delivery
- Digital download