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WorksheetsScientific Investigations
Total questions: 10
Worksheet time: 4mins
An experiment is reliable if
The experiment is done 3 times with big differences in results
You made a mistake in one trail but did not change it in the next
The same/similar results are obtained from 3 or more trials
It takes the same amount of time to complete each trail
The control group
The parts of the experiment you keep the same
The only group you collect data from
The group you change on purpose
Does not have the independent variable and is used for comparison
The dependant variable
Is the thing you measure
Depends on the people/place doing the experiment
Must not change during the experiment
Is the thing you change on purpose
The independent variable
Changes due to other factors
The change that you are making on purpose
Is an individual step of the experiment
Can be different when repeating the same experiment
What is a Variable?
Variations within the experiment
The repeating of the experiment by classmates
Anything that can change during an experiment
Something that must be keep the same during an experiment
Which type of scientific investigation should we use to study the order of the planets?
use a model
experiment
field study
a book
