U1, #4 Quiz: Safety, Equipment & Measurements

If you have been injured in the lab, what should you do first?

• A. Apply the first aid yourself
• B. Go to doctor after school in a few hours
• C Tell your science teacher immediately
• D. Not tell anyone

Flammable materials should never be dispensed (or used) near:

• A. An open door
• B. An open flame
• C.Another student
• D. A sink

Which of the following should NOT be worn during laboratory activities?

• loose clothing

• dangling jewelry

• open-toed shoes

• none of the items should be worn.

Identify the equipment shown here:

• graduated cylinder
• Erlenmeyer flask
• beaker
• volumetric flask

Identify the equipment shown here:

• beakers
• flasks
• decanters
• graduated cylinders

Identify the equipment shown here:

• beaker
• Erlenmeyer flask
• Florence flask
• volumetric flask

This is used to accurately measure the volume of a liquid in the lab.

• graduated cylinder
• metric ruler
• electric scale
• eye dropper

What is the mass?

• 272.1 g

• 270.2 g

• 272.10 g

• 270.1 g

What is the volume of liquid in this graduated cylinder?

• 40.0 mL
• 40.3 mL
• 43.0 mL
• 44.0 mL

What temperature does the thermometer show?

• 21.0° C
• 21.0° F
• 22.0° F
• 22.0°C