Bunsen burner

What safety precaution should we take when using the Bunsen burner?

• Wear protective gloves

• Wear safety googles

• Wear safety goggles

• Loosen our hair

Where should we put the Bunsen burner?

• Directly on the bench

• On the heat-proof mat

• Under the heat-proof mat

• On the wire gauze

Which part of the Bunsen burner let air in?

• Chimney

• Collar

• Air hole

• Base

Which part of the Bunsen burner controls the size of the air hole?

• Chimney

• Collar

• Rubber tubing

• Base

The air hole should be _____ before we light the Bunsen burner.

• open

• closed

Where should we place the lighter when lighting the Bunsen burner?

• On top of the chimney

• Next to the air hole

• Near the base

• Next to the gas tap

We should turn on the gas tap at the same time as we press the button of the gas lighter.

• TRUE

• FALSE

When the air hole is closed, we see a _____ flame.

• luminous

• non-lunimous

When the air hole is open, we see a _____ flame.

• luminous

• non-lunimous

How much water should we add to the boiling tube for heating?

• A whole boiling tube

• 1/2 boiling tube

• 1/3 boiling tube

• 10 drops