Lab containers are essential tools used in laboratories for a variety of purposes. Vials, which are five letters long, are small glass or plastic containers used to store and transport liquids. POUNDS, which are six letters long, are cylindrical containers with lids that are used to store and measure dry ingredients. Beakers, which are seven letters long, are cylindrical containers with a spout and a flat bottom used to mix, heat, and measure liquids. Testtubes, which are nine letters long, are thin glass tubes with a rounded bottom used to hold and mix small amounts of liquid or solid chemicals.