Baking Soda: Chemical Reactions (MS)

Version 4 (V4) Updates (as of December 2025)
● New Gas Interactive to help students understand density (Lesson 1.5)
● New Lesson: Additional Chemical Reactions (after Lesson 1.6)- Includes…
● Interactive with Video
● Easy Hands-On Investigation (not food-related)
● Switch lessons 1.4 and 1.5→ Students identify the gas before completing the Lab: Bubbles in a Bag so we can build a more complex initial model and go into chemical formulas
● Modifications to assessment (Google Form) (improved clarity of wording in questions and included substantially more detail in teacher notes about how each question aligned to NGSS and its purpose).
● Added substantial detail to help facilitation of initial model of fluffy pancake in Lesson 1.2 and returning to consensus model in last lesson (Lesson 1.8)

Version 3 (V3) Updates (as of June 2025)
New Activities:
● Lesson 1.1- initial model
- Optional muffin lab to use in place of pancake lab (Lesson 1.1)
● Lesson 1.2- new Investigation 1 [Video]: Did heat produce gas? If students think gas production is due to heat, this rules this out.
● New Lesson (Lesson 1.5 What is the gas?): Students do gas tests and learn about different gases and how to distinguish them using properties like flammability and density; provides opportunity to go over simple molecules and chemical formulas

Modifications:
● Reordered lesson sequence heavily; many activities are the same but in slightly different order (e.g. Pancake lab is now in Lesson 1.1 and What activates baking soda is in Lesson 1.3)
● More scaffold modeling for Bubbles in a Bag Lab (Lesson 1.4)