Pure aloe gel may be applied to the surface of the skin for minor skin irritations. Children should never take oral aloe preparations. Adult. Slit the leaf of an aloe plant lengthwise and remove the gel from the inside, or use a commercial preparation.
Canton Flannel is a very soft material, and therefore is ideal for polishing items where a gentle touch is needed. Canton Flannel wheels are used in the jewelry trade to polish items with gold or silver plating, where no removal of metal is desired.
Steel is a metal made by combining iron, other metals, and carbon. As you found out when you cleaned your pennies, your mixture of salt and vinegar is really good at dissolving metals and metal oxides. When you put the steel nail in the mixture, some of the iron dissolves.