Rescue breath needs to be long enough to make the chest rise.

Greasy ointments (like butter or cocoa butter) on top of a burn will retain the heat of the burn, slowing down the healing process. This is why we recommend immediately running a burn under cool water. Additives in these substances, such as fragrances in cocoa butter, can also be irritating to the skin.

A try- square is a woodworking tool used for marking and measuring a square piece of wood. The square refers to the tool's primary use of measuring the accuracy of a right angle (90 degree angle); to try a surface is to check its straightness or correspondence to an adjoining surface.