Chemistry Semester 1 Review

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

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

• to avoid eye strain

• to improve your vision

• so that you look super cool

• any time chemicals, heat or glassware are used

The following activity is permitted in the laboratory

• chewing gum

• eating

• drinking

• none of the above

in the lab, you should NEVER

• taste substances being used

• wear your goggles

• pull your hair up if its long

• wear close-toed shoes

Helping to clean up the lab or classroom is the job of

• old students.
• transfer students.
• each and every student.
• only the teacher.