what are tongs used for in science

Tongs are tools used to grip and lift objects instead of holding them directly with hands. In science, tongs are used to handle laboratory equipment, especially those that are hot and cannot be handled with bare hands. The main types of laboratory tongs are Crucible tongs, Beaker tongs, and Utility tongs. Crucible tongs are scissor-like tools with two pincers or pieces of metals that concave together, which allow the users to grasp a hot crucible from a furnace or other items that cannot be handled with bare hands. The major types of metals used to produce the tongs are stainless steel, brass, and nickel. In addition to holding crucibles, tongs can also be used to pick up flasks, beakers, and test tubes in a laboratory, as the concentration of acid in the chemical concoctions filled in them is too high.