Dare To Dash Level 2
7 Questions
.
Questions and Answers
- 1.Flammable materials, like alcohol, should never be dispensed or used near
- A.
An open door
- B.
An open flame
- C.
Another student
- D.
A sink
- 2.If a fire erupts in the class during a lab, immediately
- A.
Notify your instructor
- B.
Run for the fire extinguisher
- C.
Throw water on the fire
- D.
Open the windows
- 3.Approved eye protection devices such as goggles are worn in the laboratory
- A.
To avoid eye strain
- B.
To improve your vision
- C.
Only if you don't have corrective glasses
- D.
Any time chemicals, heat or glassware are used
- 4.After completing an experiment, all chemical wastes should be
- A.
Left at your lab station for the next class
- B.
Disposed of according to your instructor's direction
- C.
Dumped in the sink
- D.
Taken home
- 5.You are heating a substance in a test tube. Always point the open end of the tube
- A.
Toward yourself
- B.
Toward your lab partner
- C.
Toward another classmate
- D.
Away from all people
- 6.
![Crucible is made up from ceramic. Do you know why? - ProProfs]( "Crucible is made up from ceramic. Do you know why?")
Crucible is made up from ceramic. Do you know why?- A.
It has high melting point
- B.
It is good electrical conductor
- C.
It is ductile
- D.
It has various shape
- 7.Can you help me? I wonder how to carry out combustion reaction safely.
- A.
Switch off the fan
- B.
Wear lab coat
- C.
Use white tile
- D.
Avoid flame
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