The purpose was so the flies won't get in the jar.
It protects the tripod and the surface the busen burner is sitting on.
The primary purpose of a wire gauze mat is to support a container (such as a beaker or an Erlenmeyer flask) while it is being heated. The gauze mat also helps with an even distribution of heat as the Bunsen burner flame passes through the gauze to the container.
The usual purpose is as a screen to keep out leaves and sticks that might clog the gutter. Anything small enough to fit through the gauze shouldn't cause a clog.
Gauze is one of those words that we don't make plural. May I have some gauze? May I have five pieces of gauze. There is a lot of gauze on the floor.
Gauze is made of cottan
He wrapped his injury in gauze. The gauze curtains blew in the breeze.
The gauze kept the flies off of the meat.
The word "gauze" has one syllable.
To prevent flame impingement on the vessel being heated, which could damage the vessel. A flame cannot pass through a gauze (or screen). as a proof you could set up a bunsen burner beneath a wire gauze. Turn the gas on and ignite the gas above the gauze. you will notice the flame will stay above the gauze. If you ignite the flame beneath the gauze and lower the gauze into the flame, the flame will not pass above the gauze. Yet, if you light both below and above the gauze you will have flame on both sides. Indicating that flames impinging on the gauze do not burn the gas completely and the gas will pass through the gauze.
Gauze is used for bandaging wounds, cuts, etc.
a sterile gauze pad is a pease of fabric that contanes no bacterea or viruses.