Summary
The Fixies — tiny helpers who live inside our machines — reveal how a thermos slows down heat moving in or out so drinks stay hot or cold. A quick full episode (about 6 minutes) from the how-things-work cartoon, easy to drop into a science or STEM warm-up.
Viewer safety
All ages
Common Sense Media — not yet ratedIMDb Parents Guide — not yet rated
Our rating is a quick teacher-to-teacher guide — preview before showing.
Teaching resources
Discussion questions
Discussion
This episode shows how a thermos slows down heat moving in or out so drinks stay hot or cold.
- How can one bottle keep cocoa hot and also keep lemonade cold?
- What does the word insulation mean?
- What else keeps heat in or out, like a coat or an oven mitt?
Quick work-a-long
Vocabulary: thermos, heat, insulation, temperature, keep warm.
Try it: Wrap one cup of warm water in a towel and leave another uncovered; after 15 minutes, feel which is warmer.