After completing an experiment, all chemical wastes should be________________

• left at your lab station for the next class

• disposed of according to your instructor’s directions

• poured in the sink

• placed in the trash

Tags

NGSS.MS-ESS3-3

You are heating a piece of glass and now want to

pick it up. You should

• use a rag or paper towels

• pick up the end that looks cooler

• use tongs, or heat-resistant gloves

• pour cold water on it

You have been injured in the laboratory (cut, burn, etc.). First you should

• ask to see the school nurse

• see a doctor after school

• tell the science instructor at once

• apply first aid yourself

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

In a laboratory, you should be cautious of

• loose clothing

• cluttered work area

• flammable materials

• all of these things

The following footwear is best in the laboratory

• sandals

• closed-toed shoes

• flip flops

• roller skates

Tags

NGSS.MS-ETS1-3

Horseplay or practical jokes in the laboratory are

• always against the rules

• only allowed on Friday

• not dangerous

• allowed only if you are still getting work done

When you have completed a lab activity, always

• treat your hands with skin lotion

• wash your hands thoroughly with soap and water

• wipe your hands on your clothes

• wave your hands in the air with excitement

When instructed to smell chemicals, the proper procedure is to

• smell the chemicals directly from the

  container

• waft some of the odors toward your nose from 6+ inches away

• shake the chemicals first

• search for signs of coronavirus first

When identifying chipped / broken glass or damaged sharp instruments

• don't touch it

  notify the instructor

• dispose of the items in the trash

• use them in the activity, but with caution

• swap the item with another group

Tags

NGSS.HS-ETS1-3