Lab Safety and Equipment

What piece of equipment would you use to measure 50.00 mL of water?

• beaker

• Erlynmeyer Flask

• pipette

• graduated cylinder

Predict what the outcome would be if a student was working in a lab wearing sandals

• Nothing would happen

• Nothing would happen if the student wears socks with sandals

• The student could injure their foot if glass breaks

• The student would only be injured by falling objects.

What volume of liquid is in the graduated cylinder?

• 7 mL

• 7.1 mL

• 7.3 mL

• 8 mL

Eric accidentally broke a test tube and spilled a chemical on the table. Which of the following best explains what he should do next?

• Use water and paper towels to clean up the spill; bring the broken test tube to the teacher

• Throw the glass into the nearest trashcan and let the spill air dry.

• Quickly push the glass into the sink, wipe up the spill with the nearest cloth, and hope nobody notices.

• Caution his lab partners to avoid the area while he goes to inform the teacher of the small accident.

How do you smell a chemical?

• Put your nose directly over and sniff

• waft it towards your nose

• Blow on it

• you can’t; chemicals do not have odors

Tags

NGSS.MS-LS1-8

What is the proper way to put out a fire on a person?

• Let the fire go out on its own

• Spray with the fire extinguisher

• Cover with the fire blanket

• Throw water on him/her

A chemical splashes into your eye. How long must you wash your eyes out to remove all materials?

• 5 minutes

• 15 minutes

• 20 minutes

• 30 minutes

What is the purpose of a balance?

• to balance objects

• to measure an object’s temperature

• to measure an object’s volume

• to measure an object’s mass

In the event of a fire that is too large to put out on your own, what is the proper procedure for how to react?

• Run around the room screaming for help.

• Throw water at the flames.

• Find the evacuation plan and exit the building.

• Text a picture of the flames to your friend in another class.

What should you never do in a lab?

• Eat

• Wear open toe shoes

• Remove your goggles

• All of the these