Let the floor dry thoroughly. Step 3: Use your favorite method to lightly abrade the top layer of finish: Sand around the perimeter of the room by hand with a 120-grit screen. For the middle of the floor you can use a pole sander with a 120-grit screen, or a floor buffer with a pad and a 150-grit screen. screen and recoat is the best-kept secret in the hardwood flooring world. But it shouldn't be, because it can save you money, labor and time over the life of your hardwood floor. Read on, and remember, the buffer is your friend.
There are six distinct changes of phase which happens to different substances at different temperatures. The six changes are: 1  Freezing: the substance changes from a liquid to a solid.  Melting: the substance changes back from the solid to the liquid.
Best Answer: It's exothermic. Think of how ice melts. Energy in the form of heat must be applied for ice to become liquid water, so the process is endothermic. Thus, the reverse process, the freezing of liquid water to become ice, is exothermic.