Unit Test — Unit test Answers
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Alpa wants to change 0.54 kilometers into a smaller metric unit. She will have to
A
multiply.B
divide.C
add.D
subtract.22
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Which characteristic should a good scientific question have?
A
It should lead to a hypothesis that is not testable.B
It should have a very broad focus with many variables.C
It should repeat a question that the researcher has answered before.D
It should be based on observations instead of just imagination.23
Alisha organizes her data about the element lead into a table.Which did Alisha place in the wrong column?
A
Density: 11.34 g/cm3B
SoftC
Solid at room temperatureD
Malleable24
Bena thinks that dissolving more salt in water causes the mixture’s freezing temperature to change.Which is the best type of scientific investigation for Bena to use to study this?
A
an experimental investigation, because it can provide the most dataB
a comparative investigation, because it uses a wide range of variablesC
an experimental investigation, because it allows for the control of variablesD
a comparative investigation, because it would take the least amount of time25
When an experiment is replicated, how should the results of the two experiments compare?
A
The results of the first experiment should be less accurate.B
The results of the second experiment should be less accurate.C
The results of the experiments should be similar.D
The results of the experiments should be one hundred percent certain.Did you find these answers helpful?
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