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Ch. 1 Scientific method and graphing Flashcards | StudBud
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Ch. 1 Scientific method and graphing
Ch. 1 Scientific method and graphing
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1
Experimenting to see how much of an antibiotic it takes to kill a strain of bacteria, the dependent variable is
the number of bacteria being living
the time it takes for the antibiotic to work
the time it takes for the bacteria to die
the amount of antibiotic it takes
2
The statement " the arrow with the pine shaft will fly the greatest distance" would be the ____ of an experiment
quantitative data
hypothesis
dependent variable
conclusion
3
The independent variable
goes on the Y axis
never changes
goes on the X axis
doesn't go on the graph
4
The dependent variable
is manipulated
all of the above
is changed by the scientist
results from the independent variable
5
The first thing scientist's do is
perform an experiment
observe
make a hypothesis
decide what experiment to do
6
640 mg equals how many grams?
0.64
0.064
6.4
64
7
In a field you see many rabbits and want to know what kind they are. You have
devised a problem by observation
made an hypothesis by observation
formulated an experiment
none of the above
8
If the substance graphed as the red line is heated for 5 more minutes, you expect it to reach a temperature of about
25 degrees
20 degrees
30 degrees
15 degrees
9
Which would NOT be quantitative?
see through it
half a litter
20 ounces
12 inches
10
Life from something non-living is
spontaneous generation
biogenesis
catabolism
metabolism
11
If the hypothesis is shown to be wrong, the scientist should NOT
change the hypothesis and run a new experiment
do more observation on the problem
change the hypothesis and rerun the experiment
fix the experiment to show his hypothesis correct
12
Which is qualitative?
number of drops
yellow tint
322 meters
10ml
13
What is the mode of the data set?
none
7.5
2.5
0
14
What is the independent variable?
there is no independent variable
time
degrees Celsius
temperature
15
What is the mean of this data set?
2
7.5
5
2.5
16
355 meters equals how many centimeters?
35
355
35500
3550
