Unit 4
https://www.factmonster.com/dk/encyclopedia/science/heat-transfer
This site is something that an elementary teacher could use to teach their students about heat transfer. It talks not only about conduction, convection, and radiation, but it also includes evaporation. They give various examples for each process.
https://www.scientificamerican.com/article/stay-warm-with-thermal-insulation/
In this article, it talks all about insulation and how the process works. They include an experiment for you to try out, so you can understand what is happening during the process of insulation.
This short video does a nice job of showing an experiment where cars can get so hot they can bake cookies. During the video, they give a visual and explanation as to why cars get so much hotter than outside temperatures on sunny days.
https://www.wired.com/2016/11/physics-says-best-way-deal-hot-coffee/
In this article, it talks about the best way to cool down hot drinks, specifically coffee. The author constructs an experiment to see which way works best. It includes the method he used, data, results, and explanations.