If a laboratory fire erupts, immediately _________.

• Run for the fire extinguisher.

• Notify your instructor.

• Throw water on the fire.

• Open the windows.

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

• Toward yourself.

• Toward your lab partner.

• Toward another classmate.

• Away from all people.

The following footwear is required in the lab ________.

• Sandals.

• Open-toe shoes.

• Closed-toe shoes.

• Shoes appropriate for the weather.

The following footwear is required in the lab ________.

• Sandals.

• Open-toe shoes.

• Closed-toe shoes.

• Shoes appropriate for the weather.

True or False:

Return all unused chemicals to their original containers.

• True

• False

( Fill in the blank) Long hair should be ____________ in the laboratory.

• tied back

• cut

• down

• curled

Hot glass looks the same as cold glass.

• True

• False

The proper technique for smelling chemicals is ______________

• keeping your nose close to the glassware
• wafting
• to sniff only a small amount
• Trick question; you never are allowed to smell chemicals in class

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.

After completing an experiment, all wastes should be

• taken home

• tossed in the trash can

• disposed of according to your teacher's directions

• left out for someone else to clean