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 lets air (oxygen) 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

What is the correct sequence of turning on the Bunsen burner?

• Close the air hole.

• Open the air hole slowly.

• Put the Bunsen burner on a heat-proof mat.

• Place a gas lighter just above the top of the chimney.

• Light the gas lighter and turn on the gas tap.

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