Exam 1 PCA Chemistry Review

You should never ______ chemicals in the lab. 

• taste
• touch
• smell
• all of the above

Tags

CCSS.RI.11-12.3

CCSS.RI.11-12.5

CCSS.RI.8.3

CCSS.RI.9-10.3

CCSS.RI.9-10.5

If you are not sure what to do during a lab activity:

• guess
• change lab partners
• ask a teacher
• just sit quietly and do nothing

Keeping your work area neat and clean is important because:

• My teacher is a neat-freak
• I won't lose my supplies in the clutter.
• It keeps the room from looking messy.
• It helps prevent accidents.

What is the CORRECT procedure for students to follow if a chemical is spilled?

• Stand back and advise the teacher of the spill.
• Run madly out of the room.
• Splash large amounts of water onto the spill.
• Immediately ask to go to the restroom.

You should report accidents to the teacher __.

• after the class is over
• immediately 
• the following day
• never

If you do not understand a direction or part of a laboratory procedure, you should

• ask the teacher before proceeding.

• skip it and go on to the next part.

• figure it out as you do the lab.

• try several methods until something works.

Long hair in the laboratory must be 

• tied back or kept entirely out of the way with a hair band, hairpins, or other confining device
• always neatly groomed
• held away from the experiment with one hand
• cut short

You are heating a substance in a test tube. Always point the open end of the tube 

• away from all people
• toward another classmate
• toward your lab partner
• toward yourself

Approved eye protection devices (such as goggles) are worn in the laboratory

•  to avoid eye strain
• to improve your vision
• only if you don’t have corrective glasses
•  any time chemicals, heat or glassware are used

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