It never fails. My students struggle to understand what insulation is and how it works. I had seen this experiment demonstrated at the Georgia science conference in 2014. I finally had the time to make the materials needed for the experiment.
- 3 empty, clean milk jugs
- 3 bags of cotton balls
- Hot glue gun
- Hot glue sticks
- Box cutter
How to make it:
One jug will have cotton balls glue all over the insides of the jug.
You will use three thermometers to determine which “house” contains heat the best.
- Using hot water, warm the thermometers up to the same temperature.
- Quickly dry all the thermometers off and place one inside of each “house”.
- Check the temperature every 10 minutes for thirty minutes.
- Discuss what happened.
I can’t wait to try this with my kids this year!