What should you do with long hair during a lab investigation?
a)
Keep it clean
b)
Keep it brushed
c)
Keep it straight
d)
Keep it tied back
2.
If you do not understand a direction or part
of a laboratory procedure, you should:
a)
figure it out as you do the lab.
b)
try several methods until something
works.
c)
ask the teacher before proceeding.
d)
skip it and go on to the next part.
3.
You have been injured in the laboratory (cut,
burned, etc.). FIRST you should:
a)
visit the school nurse.
b)
see a doctor after school.
c)
tell the teacher at once.
d)
apply first aid yourself.
4.
Horseplay, practical jokes, or pranks in the
lab classroom are
a)
always against the rules.
b)
okay.
c)
not dangerous.
d)
okay if you are working alone.
5.
The following footwear is best in the laboratory.
a)
any type of shoes
b)
open-toed shoes
c)
closed-toed shoes
d)
sandals
6.
When is it OK to eat or drink at the lab tables?
a)
Always
b)
During group work, but not during lab activities
c)
Never
d)
During lab activities
7.
Helping to clean up the lab or classroom is the job of
a)
lazy students.
b)
new students.
c)
each and every student.
d)
only the teacher.
8.
All chemicals in the lab are to be considered dangerous, and should be handled very carefully.
a)
True
b)
False
9.
A violation of the safety contract that results in unsafe conduct in the lab may result in removal from the lab and receiving a failing grade for that lab.
a)
True
b)
False
10.
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 teacher’s directions.
c)
dumped in the sink.
d)
taken home
11.
Calculate the Volume
a)
410 cm3
b)
420 cm3
c)
67 cm3
d)
24 cm3
12.
a)
45mm2
b)
45mm3
c)
3,375mm3
d)
3,375mm2
13.
What tool do you use to measuremass?
a)
b)
c)
d)
14.
What units measure mass? Pick 2!
a)
inch
b)
gram
c)
kilogram
d)
liter
15.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
16.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
17.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
18.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
19.
What tool is used to measure length?
a)
Graduated cylinder
b)
Triple beam balance
c)
Meter stick
d)
Scale
20.
What tool do we use to measure temperature?
a)
Thermometer
b)
Ruler
c)
Balance
d)
Magnifying Glass
แป้นคำตอบ
Lab Safety + Measurement Quiz
คำถามทั้งหมด: 20
1.
d) Keep it tied back
2.
c)
ask the teacher before proceeding.
3.
c)
tell the teacher at once.
4.
a)
always against the rules.
5.
c) closed-toed shoes
6.
c) Never
7.
c) each and every student.
8.
a)
True
9.
a)
True
10.
b)
disposed of according to your teacher’s directions.
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