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Hot and Cold

Main Core Tie

Science - Chemistry
Standard 4 Objective 2

Time Frame

1 class periods of 90 minutes each

Group Size



Utah LessonPlans


Students study the energy associated with physical and chemical changes. The activity consists of observing nine phenomena.


  • student instructions/worksheet (attached)

    per group:

  • acetone in dropper bottles
  • alcohol in dropper bottles
  • concentrated sulfuric acid in dropper bottles
  • 6 M HCl in dropper bottles
  • 6 M NaOH in dropper bottles spatula of NaOH
  • 2 spatula of NH4Cl
  • spatula of Ba(OH)2
  • spatula of CaCO3
  • spatula of anhydrous CuSO4

Instructional Procedures

Step-by-step instructions and procedures are found on the student instruction sheet attached.


Lesson Design by Jordan School District Teachers and Staff.

Created: 12/17/2014
Updated: 02/03/2018