Blood is a fluid connective tissue that performs many functions in the body. It carries oxygen and nutrients to the cells, hormones (chemical messengers) to the tissues, and waste products to organs that remove them from the body.
A wash bottle is a squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks. Wash bottles using in laboratories. Wash bottles are sealed with a screw-top lid.
Test Tube Rack - holds test tubes during observation or testing. Wash Bottle - used for rinsing solids out of a container. Pipet - used for exact measurements of liquids. Spatula - chemical spoons used to transfer solids from their original container to a scale for weighing. Wire Gauze - adds additional support for containers held on tripods or O-rings. Crucible Tongs - used for picking up crucibles & crucible covers only. Mortar & Pestle - used to grind solids into powders.