Lab Safety and Scientific Method Quiz

Flammable materials, like alcohol, should never be dispensed or used near _____________.

• an open door.

• an open flame.

• another student.

• a sink.

If a laboratory fire erupts, immediately ___________________.

• notify your instructor.

• run for the fire extinguisher.

• throw water on the fire.

• open the windows.

Approved eye protection devices (such as googles) are worn in the laboratory ______________________.

• to avoid eye strain.

• to improve your vision.

• only if you don't have corrective glasses.

• any time chemicals, heat, or glassware are used.

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.

• ask the instructor before proceeding.

• skip it and go on to the next part.

After completing an experiment, all wastes should be _______________.

• disposed of according to your instructors directions.

• left at your lab station for the next class.

• dumped in the sink.

• taken home.

The following footwear is best in the laboratory: _____________.

• sandals.

• open-toed shoes.

• closed-toed shoes.

• shoes appropriate for the weather.

In the laboratory, the following should not be worn: ____________.

• loose clothing.

• dangling jewelry.

• sandals.

• all of the above.

Long hair in the laboratory must be ______________.

• cut short.

• held away from the experiment with one hand.

• always neatly groomed.

• tied back or kept entirely out of the way.

You have been injured in the laboratory. First you should ______________.

• visit the school nurse after class.

• see a doctor after school.

• tell your instructor.

• apply first aid to yourself.

Match the following

• The variable that is changed in the experiment.

• Dependent Variable

• The results of the experiment.

• Control Group

• The group in an experiment in which all variables are not being tested. Used for comparison.

• Data

• This variable in the experiment is "measured". It is the data that is recorded.

• Independent Variable

• A statement that predicts the relationship between cause and effect in a way that can be tested.

• Hypothesis

Tags

NGSS.MS-PS1-2