Chemical Safety

When handling hot glassware

• use gloves or tongs
• use hands
• you can tell it is hot by looking
• use ice

When is it OK to eat or drink at the lab tables?

• Always
• During group work, but not during lab activities
• Never
• During lab activities

When should you use the shower in the stockroom?

• After P.E.
• After spilling chemicals onto your body
• Before going out on a date
• Never

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

When should safety goggles be worn?

• at all times in the lab
• when you feel like it
• when chemicals could splash into your eyes OR when using glassware

Before leaving the lab you should always wash or sanitize your hands.

• True 
• False

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

• True
• False

Tags

NGSS.HS-ETS1-3

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