Driving or Multi-dimensional Question:
How can we use thermochemistry principles to create emergency meals for refugees, soldiers and/or those displaced by natural disasters? Students will conduct investigations and analyze data to discover how energy transfer occurs within closed systems in order to better understand that energy cannot be created or destroyed, it only moves between objects, fields and/or systems.
In this PBL, students will explore the science behind thermochemistry and how energy can be harnessed to create emergency meals for refugees, soldiers and/or those displaced by natural disasters (emergency preparedness). Students will discover how “meals ready to eat” (MREs) work, then brainstorm and construct their own MREs using specific chemicals. Students will also explore how ratios can be used to generate specific amounts of heat. Students will share their findings and the importance of using thermochemistry to solve problems with their peers.
1. Identify and give examples of the various forms of energy (kinetic, gravitational potential, elastic potential) and solve mathematical problems regarding the work-energy theorem and power.
2. Plan and conduct an investigation to provide evidence that thermal energy will move as heat between objects of two different temperatures, resulting in a more uniform energy distribution (temperature) among the objects.
5. Investigate the relationships among kinetic, potential and total energy within a closed system (the law of conservation of energy).
7. Demonstrate Ohm’s Law through the design and construction of simple series and parallel circuits.
9. Demonstrate the impact of the starting amounts of radioactive substances upon the energy released.
PCSI.PS2 Motion and Stability Forces and Interactions.
7. Plan and conduct an investigation to provide evidence that an electric current can produce a magnetic field.
ELA and Other Standards:
EVSC.ETS2 Links among engineering, technology, science and society.
Engage in argument from evidence on the role engineering and technology play in a sustainable human society.
Created By: Sonia Hodges
Grade Level or Subject: Physical Science
Tennessee Academic Standards for Science Connection
Disciplinary Core Idea: At the Macroscopic Scale, Energy Manifests Itself in Multiple Ways, Such as in Motion, Sound, Light and Thermal Energy. Energy is a Quantitative Property of a System that Depends on the Motion and Interactions of Matter and Radiation Within that System.
Science and Engineering Practices: Communicate Technical Information or Ideas About Phenomena and/or the Process of Development, Design and Performance of a Proposed Process or System in Multiple Formats.
Cross Cutting Concepts: Energy Cannot be Created or Destroyed—It only Moves Between Between Objects and/or Fields, or Between Systems.
21st Century Skills
- Critical Thinking
- Communication Skills
- Collaboration (Team Building)
- Creativity and Innovation
For more information on this lesson please see the Lesson Resources below
|Activities||Resources and Materials|
What is Energy?
Explore Different Forms of Energy
Video: What Is Energy?
Energy Stations PowerPoint
Laws of Conservation of Matter and EnergyMake/Burn a Candle
Candle Burning Video:
Making a Soy Candle Video:
Instant Cold and Hot Packs:
Instant Light Materials:
The Difference Between AC and DC Current Video:
Thermochemistry Experiment Materials:
Flameless Ration Heaters:
How MREs Work:
Electricity and Energy Storage:
Potato Battery Materials:
Design a Simple Electromagnet/Motor:
|Business Partner||Contribution to Learning Experience||Contact Information|
AEP (Appalachian Power)
Funds to purchase alternative energy STEM kits
Your Local Power Company
|Funds to purchase alternative energy STEM kits; local resource for career and data information.||https://www.tva.com/Energy/Public-Power-Partnerships/Local-Power-Companies|
|STEM kits for alternative energy||
|Flinn||Activities found online and in A Demo a Day activities books||https://www.flinnsci.com/a-demo-a-day—a-year-of-chemical-demonstrations/ap8852/|
Students will share their investigation findings and the importance of using thermochemistry principles to solve problems. Student teams will develop a mixed-media presentation explaining how they worked to develop a unique MRE using thermochemistry principles.
If there is an ROTC course provided at your school, students could tailor their presentations specifically to those students and instructors representing branches of the armed forces.