Ghost in a Bag Slides
Investigation slides for Lesson 3 focusing on gas production (carbon dioxide) as a chemical indicator, using a vinegar and chalk experiment in a sealed bag.
Gas Trapper Report Worksheet
A structured lab report for Lesson 3 where students record visual observations and pressure changes during the vinegar and chalk investigation, helping them infer the creation of a gas.
Chemical Clues Quiz Assessment
A mid-sequence assessment for Lesson 3 reviewing temperature shifts, color changes, and gas production as indicators of chemical reactions.
Chemical Clues Quiz Answer Key
Answer key for the Chemical Clues Quiz, providing correct answers and scientific rationales for each question.