For our science lab, we had to make our own thermos. These are slides from our lab presentation.  We were studying how heat moves from hot to colder places and from cold to hotter places.

Everyone’s family brought in a bit of extra “stuff” that could be used for insulation.  Insulation is where you try and keep the heat you have a constant temperature….if it’s cold you want it to stay cold and if it’s hot you want it to stay hot.  Mrs. R challenged us to make a thermos out of these recylced materials.  We put a cup in the middle to put hold the water to test our experiment. Then, we put cotton around it and wrapped it in a styrofoam wrap, and used a rubber band to hold it all together, and to trap the heat inside!

We tested it out and it worked very well. The temperature didn’t drop too much.We test it with both warm and cold water and the tempature dropped very little. Our thermos was a success!

Jill and Nancy