What is the correct procedure to follow when testing the odor of a substance? 

• Use a wafting motion to direct the odors towards your nose. 
• Place your nose near the opening of the beaker and inhale. 
• Place your nose directly over the substance and take a big whiff. 
• Put a small amount of the substance in your hand and smell it. 

Which of the following is not true when working with chemicals? 

• All of the statements are true. 
• Never taste or smell any chemicals or substances unless directed to do so by your teacher. 
• Inform your teacher immediately if you spill chemicals or get any on your skin or in your eyes.
• Be safe at all times

If you have been injured in the laboratory (cut, burned, etc) or had an accident, the first thing you should do is 

• tell the teacher.
• apply first aid yourself.
• pick up any broken equipment or materials by yourself.
• visit the school nurse after class.  

Long hair in the laboratory must be

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

When using a razor blade or scalpel, always cut material  

• away from you.
• toward you.
• in your hand.
• perpendicular.

Read all procedures thoroughly before performing a laboratory investigation

• true
• false

Only heat liquids in a closed container

• false
• true

All _______in the lab should be treated as if they are dangerous and hazardous

• chemicals
• students
• adults
• rules

Guiding a smell to you using your hand is called

• wafting
• sniffing
• smelling
• waddling

You should report accidents to the teacher __.

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