WorksheetsWater Phase Change and Temperature
Total questions: 12
Worksheet time: 7mins
Based on observations made in the lab, we determined the boiling point of water to be closest too.
96 C
97 C
99 C
100 C
When water is boiling its temperature
begins to drop.
continues to rise.
stays the same.
oscillates up and down
Liquid water can exist belong the temperature of its freezing point.
True
False
A wide variance in a class's data for the response time of a set of the same electronic thermometers suggests
a problem with the independent variable
a problem with the dependent variable
inconsistency in lab procedure between groups
faulty sensors
The instrument used to take data is called a blue tooth digital
hygrometer
barometer
spectrometer
thermometer
What did adding salt to the ice water in the freezing/thawing lab do? Check all that apply.
It lowered the freezing point of the water in the beaker.
It lowered the freezing point of the water in the test tube.
It lowered the temperature of the water in the beaker.
It lowered the melting point of the water in the test tube.
What should have, or did happen, to the graph of the temperature of the water in the testube in the freezing lab? Answer all that apply.
It dropped to 0 C and flat-lined.
It dropped below 0 C
It spiked up to 0 C when the water froze and flat-lined
It spiked down to 0 C and flat-lined at freezing
The rate for measurement in the boiling lab was
100 samples/minute
100 samples/second
0.1 samples/second
0.1 samples/minute
The rate for sampling in the freezing lab was
100 samples/min
100 samples/sec
0.1 samples/min
0.1 samples/second
As the ice that formed in the test tube melted, its temperature
rose rapidly
stayed close to 0 C
jumped up 5 C and flat-lined
dropped below 0 C
When graphing data from a laboratory investigation (more that one answer)
the dependent variable should be on the y axis.
the dependent variable should be on the x axis.
the independent variable should by on the y axis.
the independent variable should be on the x axis.
Calculating the slope of a graph, even if its flat will give you the
maximum value of the data.
median value of the data.
the mean value of the data.
the overall value of the data.
