Chemical Reactions in Heating Devices

Flashcard
•
Science
•
7th Grade
•
Hard
+6
Standards-aligned
Andrew da Costa
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What observations might indicate a chemical reaction is happening inside the MRE heater or hand warmer?
Back
Generation of heat and change in temperature
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
2.
FLASHCARD QUESTION
Front
How does the addition of water to the MRE heater contribute to the heating process?
Back
It triggers a chemical reaction
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-4
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
How do chemical reactions in the MRE heater and the hand warmer differ?
Back
The MRE heater uses a reaction with water to produce heat, while the hand warmer uses air exposure.
Tags
NGSS.MS-PS1-5
NGSS.MS-PS3-4
4.
FLASHCARD QUESTION
Front
What should you do first when creating your flameless heater design?
Back
Consider the criteria and constraints of the project.
Tags
NGSS.MS-ETS1-1
5.
FLASHCARD QUESTION
Front
Why is it important to develop an initial model for the flameless heater?
Back
To visualize and explain how the heater will function
Tags
NGSS.MS-ETS1-4
6.
FLASHCARD QUESTION
Front
What did you notice about how an MRE heater activates?
Back
It activates by adding water.
Tags
NGSS.MS-PS1-4
7.
FLASHCARD QUESTION
Front
What is one potential hazard of magnesium powder in the MRE heater?
Back
It is highly flammable, especially in powdered form.
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