Grade Level: 7th to 9th; Type: Chemistry
This experiment provides a graphic illustration of the chemical reaction that transpires when you activate a hand warmer.
- What is in hand warmers?
- How do hand warmers work?
- Why does the “hot ice” form in thie experiment?
Hand warmers provide instant heat on a cold day. They're also useful for making sculpture!
- Five Reusable Hand Warmers
- Activate one of the hand warmers.
- When it turns white and stops giving off heat, cut it open and remove a single crystal.
- Place the crystal on a plate.
- Cut open the other four hand warmers and pour their contents into the bottle.
- Carefully pour the contents of the bottle onto the crystal. Watch the effect. Voila! You are a modern artist!
Terms/Concepts: exothermic, endothermic, chemical instances
References: Hand Warmers Chemical Instances: http://homechemistry.blogspot.com/2008/03/hand-warmers.html
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