This probe is outstanding to address the need for heat source. Be careful of showing the illustration (thermometer bulb pointing out instead of in). I would recommend removing the illustration and replacing it with your own set up, then let students conduct the experiment themselves. Outstanding for creating discourse. Have students experiment with hats and scarves too!

This author has created many formative assessments probes and this is another one of my favorites. First you administer the probe to assess students preconceptions, then you are given discussion points and activity ideas to help students understand their misconception.

An excellent question to ask students. I like how the probe looks at the alternative conception that students may have. My only wish is that they would fix the picture associated with the probe. The thermometer in the mitten has the testing end sticking out of the mitten instead of inside the mitten.