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Lab Safety and Scientific Method Flashcards | StudBud
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Lab Safety and Scientific Method
Lab Safety and Scientific Method
20 terms
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StudBud Administration
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Unit 1 and 2 Review
Flashcards
20 cards
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Practice quiz
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Host live
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Questions
20
Answers
1
what can you use if you do not know what safety precautions to take with a chemical?
MSDS or SDS
a classmate
Mr. Koder
don't worry about it.
2
measures distance
meter stick
triple beam balance
Erlenmeyer flask
thermometer
3
what is the volume of the ball?
30ml
25ml
20ml
100ml
4
the variable that is measured in an experiment
dependent variable
control
constant
independent variable
5
Bob puts a plant in a room that is quite and one in a room with music. What is his question?
Does room Temperature effect growth?
Does music effect growth?
Does light effect growth?
Does oxygen effect growth?
6
measures mass
triple beam balance
thermometer
graduated cylinder
meter stick
7
stays the same in an experiment.
control
constant
dependent variable
independent variable
8
What conclusion can be made from this graph?
algae goes up as temp goes up, but declines at a point
the algae are not effected by temperature
the algae always decrease as the temperature decreases
the algae decreases as the temperature increases
9
used to compared the results. No independent variable is applied
constant
independent variable
control
dependent variable
10
The variable that is tested in an experiment
constant
Independent variable
control
dependent variable
11
When using an unknown powered in lab you should always have____
fire blanket, apron, goggles
goggles, apron, fire extinguisher
apron, eye wash, goggles
broken glass receptacle, apron, goggles
12
what will the temperature be on day 10?
67
72
70
75
13
Which student is following proper safety procedure?
C
B
A
D
14
what is the mass on this balance?
265.7
266
256
265
15
which is an example of quantitative data?
pink
clear
15g
smells like rotten eggs
16
your group is given 4 liquids. What is the safest way to proceed?
taste each one
heat a small sample of each
see if sugar dissolves in all
mix them all together
17
What is the dependent variable?
Water Temp
Time
Algae size
Algae Growth
18
measures volume
beaker
graduated cylinder
triple beam balance
metric ruler
19
which is an example or qualitative data?
two
25.5 ml
17 cm
blue
20
a good science experiment always ________
uses calculations
is repeatable
requires days to weeks to complete
uses expensive equipment
