Exothermic and Endothermic - STEM Activity -Design a Cold Pack

Rated 4.94 out of 5, based on 47 reviews
47 Ratings
Grade Levels
6th - 8th
Formats Included
  • Zip
39 pages
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What educators are saying

I loved this unit on exothermic and endothermic reactions. Great information and a nice mix of activities. The reading passages and the slide show were awesome and the students loved the lab!
Great comprehensive unit for middle school science. It went well with the standards and there were a variety of activities to seal the learning. Thank you!
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Design a Cold Pack❄️ Students will learn about exothermic and endothermic reactions in dramatic experiments in which they see the temperature quickly rise or drop. They will use this information to design a cold pack. Students will use engineering skills and the design cycle and they will construct a solution.❄️❄️❄️

✅NGSS MS PS1-6 Undertake a design project, engaging in the design cycle, to construct and/or implement a solution that meets specific design criteria and constraints test, and modify a device that either releases or absorbs thermal energy by chemical processes.*

This resource includes:

  1. an informative slide show
  2. strategic note-taking guide
  3. two lab activities
  4. a STEM engineering activity
  5. a reading passage
  6. response pages
  7. a quiz 
  8. answer keys

**The materials for the labs include thermometers, hand warmers, glass jars, vinegar, baking soda, calcium chloride, ammonium chloride, and water.

The two chemicals listed can be purchased online from a science supply company. A link is included in the terms of service. 

****This also includes an engineering activity to fully meet the standard for NGSS MS PS1-6. For the engineering activity, students will need some ziplock baggies, tape, foil, and other easy-to-find household materials.

Would you like to see more about forming a precipitate?

Save money and purchase as part of this bundle: Matter and Its Interactions

Save money and purchase this in the larger bundle; Engineering for Middle School Science.

Since this lab includes real labs with chemicals, students will need safety goggles.

My resources, including the slide show, are secure and not editable. This is for copyright reasons. 

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This resource is created by Lynda R. Williams. If you have questions about Teaching Science resources, please contact me at lywilliams1@gmail.com

You will also love these other resources for NGSS Middle School Science:

Chemical Reactions

Human Systems


Cells: Structure and Function

Thermal Energy

Total Pages
39 pages
Answer Key
Teaching Duration
1 Week
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to see state-specific standards (only available in the US).
Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
Define the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the natural environment that may limit possible solutions.
Analyze data from tests to determine similarities and differences among several design solutions to identify the best characteristics of each that can be combined into a new solution to better meet the criteria for success.
Undertake a design project to construct, test, and modify a device that either releases or absorbs thermal energy by chemical processes. Emphasis is on the design, controlling the transfer of energy to the environment, and modification of a device using factors such as type and concentration of a substance. Examples of designs could involve chemical reactions such as dissolving ammonium chloride or calcium chloride. Assessment is limited to the criteria of amount, time, and temperature of substance in testing the device.


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