Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Science

What is in a hand warmer?


There are two common types of hand warmers. One uses sawdust and iron dust, which heats up when exposed to air, but produces no flame. Other types use lighter fluid or propane and make a very small flame with a glowing filament.

{{ relativeTimeResolver(1576719911725) }}

LIVE
Points points 81
Rating 0

Similar Questions
Sign in to view all similar questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE