2. Steel is the most thermal conductor. When you put a steep spoon, or any metal spoon, in a hot soup, you will notice that the spoon gets hot. This is because it is very good at conducting heat.
However, plastic is not a very good conductor. Plastic spoons don't tend to get very hot at a fast speed, so it is the poorest.
3. The most heat will be seen near the roof. Hot air, known as heat, always rises upwards. So, it makes sense that most of the heat is at the top of the house, near the roof. The cooler air will be down below near the bottom of the house.
Hope this helps! :)
