WorksheetsExperiments
Total questions: 10
Worksheet time: 20mins
A hypothesis is tested through observation and/or experimentation.
True
False
Independent variables are not changed by the researcher.
True
False
Two main experimental errors are:
Desirable and undesirable errors
Static and dynamic errors
Systematic and random errors
Small and large errors
A factor that depends on the independent variable is the
Independent variable
Independent factor
Dependent variable
Dependent factor
To test a hypothesis, we can
Figure out what we believe to be true
Do experiments with multiple independent variables
Gather data using scientific method
All of the above
A researcher has a cold and isn’t doing her best work. What type of error is this?
Systematic error
Experimental error
Random error
Controlled error
In an experiment to test whether vitamin C prevents getting a cold or not, the sample population is divided into two groups so that one group receives the vitamin C dose and one group does not. Which of these is a control group?
The group that doesn’t receive vitamin
All the sample population
The group that receives vitamin
None of the above
Experimentation:
May be performed in the field or in a
laboratory
Is one of the steps of the scientific method
Is intended to verify or falsify a hypothesis
All of the above
An experiment is done to determine how temperature changes throughout the day. Which factor is dependent and which factor is independent
The independent factor is the time of day
and the dependent factor is the temperature
The independent factor and the dependent
factor is both the time of day
The independent factor is the researcher
and the dependent factor is the time of day
The independent factor is the temperature
and the dependent factor is the time of day
Which of the following is true of scientific investigations?
Information is obtained
only through
experimentation
Information is obtained through
observations and experimentation
Scientific explanations are not rigorously
tested
Pseudoscientific explanations are not
automatically rejected
