Laboratory Safety and Equipment

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

• skip it and go on to the next part.
• ask the instructor before proceeding
• try several methods until something works
• figure it out as you do the lab

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

• skip it and go on to the next part.
• ask the instructor before proceeding
• try several methods until something works
• figure it out as you do the lab

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

 The following footwear is best in the laboratory. 

• shoes appropriate for the weather
• open-toed shoes
• closed-toed shoes
• sandals

What safety symbol is this?

• Clothing Protection
• Hand Protection
• Eye Protection
• Sharp Object Hazard

What does this symbol indicate? 

• Fumes are present; ventilation required.
• Fumes are present; inhale deeply.
• Moisture is condensing; use a test tube to collect. 
• Spill safety.

Long hair in the laboratory must be 

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

In a laboratory, the following should NOT be worn. 

• all of the answers
• dangling jewelry
• sandals
• loose clothing

 Horseplay or practical jokes in the laboratory are 

• okay if you are working alone
• not dangerous
• okay
• always against the rules

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

• figure it out as you do the lab
• try several methods until something works
• skip it and go to the next part
• ask your teacher