Lab equipment must be cleaned and stored properly after use primarily to...

• chemical products can be measured and recorded as data

• save time in setting up the next experiment

• keep toxic materials in the laboratory

• reduce the possibility of contamination in the laboratory and ensure a safe environment

A science class is conducting an experiment that produces noxious fumes. Because of inadequate ventilation (and not using the fume hood), some students begin to feel dizzy and nauseated. The first response should be to...

• neutralize the acid that is reacting to produce the noxious fumes

• carry the reactants outside, away from other students

• leave the room and go to an area with fresh air

• spray the reaction with a fire extinguisher

When gathering glassware and equipment for an experiment, you should...

• read all the directions carefully to know what equipment is necessary

• examine all glassware for chips or cracks

• clean any glassware that appears dirty

• all of these

The following footwear is best suited for the laboratory:

• hiking sandals

• open-toed clogs

• closed-toe shoes that cover the foot

• shoes that are appropriate for the weather

Which of the following is the correct statement about wearing goggles?

• Wear goggles only when the bunsen burner is in use.

• Wear goggles until your table finishes the lab.

• Wear goggles only until you finish the lab.

• Wear goggles until everyone completes the lab or as instructed by your teacher.

If an acid is splashed on your skin, wash it at once with...

• soap

• oil

• a weak base

• plenty of water

• Put on safety goggles

• Handle the beaker with tongs

• Secure loose clothing to avoid hazards

• All of these

When you finish working with chemicals, biological specimens, or other other lab substances, always...

• treat your hands with lotion

• wipe your hands on a paper towel

• wash your hands thoroughly with soap and water

• wipe your hands on your clothes

Broken glass should be...

• picked up immediately with your hands

• thrown away into the regular trash

• left for the next class to clean-up

• swept up in a dustpan and disposed of in the sharps container

You have been injured in the laboratory (local cut or small burn). You should...

• visit the school nurse after school

• see a doctor after school

• tell the science instructor, immediately

• apply first-aid yourself