BUNSEN BURNER

Before

After

Base

Collar

Cylinder

Barrel

Collar

Air Hole

Base

Yellow, blue

Blue, yellow

Blue, orange

Yellow, green

Gauze mat

The laboratory bench

A heatproof mat

Tripod

Barrel, collar, air hole, gas hose and base

Barrel, collar, air vent, gase hose and base

Barrel, collar, air vent, gas hose and bottom

Barrel, neck, air hole, gas hose and base

Wear safety goggles, use a test tube holder and hold the test tube away from you

Wear safety goggles, use tongs and hold the test tube close to you

Wear safety goggles, use a test tube holder and make sure the flame is only yellow

Wear safety goggles, use tongs and hold the test tube away from you

Protects the tripod

Distributes heat evenly

Protects the laboratory bench

Wraps around a test tube to cool it down