Lab Safety

What should you do if you break glass in the lab?

• Tell the teacher, sweep up the glass, and put it in the broken glass container
• Tell the teacher, sweep up the glass, and dump it into the garbage
• Pick up the glass with your hands
• Ignore it; the teacher will clean it up

Why should you clean all materials after working in the lab?

• Chemical residue left on the materials may affect later experiments or cause a chemical reaction
• Dirty classware may start to smell bad
• Some chemicals we use in labs may slowly dissolve glass, and if you leave them long enough holes will actually form
• Trick question - you actually don't need to wash your materials after lab as long as you remember to do it before lab next time. 

Part of lab safety includes reading the lab procedure...

• before doing the lab
• while doing the lab
• after doing the lab
• only if you think you really need it

I must follow all instructions, written and verbal, about the laboratory procedures given by the teacher.

• True
• False

You notice a beaker half full of a leftover powdered chemical and you are pretty sure you know which chemical it is.  You should

• Ask the teacher what to do with the chemical
• Pour the chemical back into the container you think it came from
• Pour the chemical into the garbage can
• Pour the chemical down the drain with the water running

Tags

NGSS.HS-ETS1-3

I must keep my lab table and the area around it clean and neat.

• True
• False

I must tie back long hair when using a bunsen burner and/or when the hair can interfere with lab.

• True
• False

Horseplay, jokes, and pranks are appropriate and encouraged in the lab at any time.

• True
• False

When working in the lab it is the expectation that...

• you work with only members of your group with a business like attitude
• you ask questions when in doubt about procedures
• you clean up before lab if needed and as you are doing lab 
• all of the above

I can perform only those activities that have been authorized by the instructor.

• True
• False