Lab Safety + Bunsen Burner Procedure

What should you do if you accidentally break glassware?

• Tell your teacher immediately, then begin sweeping it up

• Immediately begin to sweep the glass up to prevent anyone getting hurt

• Tell your teacher immediately, do not try to clean it up

• Don't tell anyone and hope you don't get in trouble

Your bunsen burner with a safety flame is knocked over, what do you do?

• Place it back on the heatproof mat, it is only on safety flame so this is safe to do.

• Turn off the gas at the gas tap, pick up the bunsen burner by the barrel and place it back on the mat

• Turn off the gas at the gas tap, then let your teacher know

• Panic, don't do anything because you're a bit scared you'll get into trouble

What is the hottest part of a blue flame? This is where you should hold a test tube when heating materials in a test tube

• 1

• 2

• 3

• 4

When lighting a bunsen burner, the

• collar must be open, opening the air holes

• collar must be shut, closing the air holes

• collar must be half open, slightly opening the air holes

• it doesn't matter what position the collar is in

You are trying to turn off a bunsen burner but it won't turn off. What do you do?

• Leave it unattended on safety flame

• Let your teacher know immediately

• Hit the Emergency Stop valve that shuts off the gas before anyone gets hurt

• Remove the hose from the gas tap as this will turn off the bunsen burner

You are heating solids over a bunsen burner. You run out of test tubes to use, it is okay to use a conical flask. True or false?

• True

• False

• True, only if there are no test tubes left to use

Tags

NGSS.MS-ETS1-1

When heating a test tube over a bunsen burner, it should be

• held pointing straight up to ensure it heats up evenly and not moving it around

• held at an angle toward you so you can see in, moving it around slightly to ensure it doesn't overheat

• held at an angle away from you as that is safer, moving it around slightly to ensure it doesn't boil over

• held at an angle away from you as that is safer, and not moving

You have finished mixing some chemicals for a practical, what should be done with them?

• flushed down the sink

• all poured in together into a large conical flask for easier

• Ask your teacher, they will need to be disposed of safely

• left on the bench for someone else to clean up for you

Tags

NGSS.HS-ESS3-4

(Select all the right answers)

PPE that you may be required to wear when conducting an experiment in the lab.

• Safety glasses

• Apron

• Hair tie to keep hair up

• Gloves

(Select all the right answers).

The lab can be a busy and noisy place with lots of people. You should always:

• Be mindful of others around you

• Adhere to the safety rules

• Use your inside voice, no yelling

• Be patient when sharing equipment. Too many scientists spoils the experiment!