Quick formative on identifying variables
The percentage of fibre in the concrete is the variable
The height to crack the concrete is the variable.
The mass of the ball is a variable.
The thickness of the slab is a variable.
The best conclusion that can be made from the results so far is as the percentage of fibre increases the height to crack the concrete .
(Note we can say that the height to crack the concrete is proportional to the percentage of fibre in the concrete as the line of best fit is a straight line).
The number of carbon atoms in one molecule of the alkane is the variable.
The boiling point is the variable.
The fact that all of the molecules are alkanes is a variable
The best conclusion that can be made from the results so far is as the number of carbon atoms in one molecule of the alkane increases the boiling point .
(Note the data does not show a proportional relationship as the trend is not a straight line)
The independent variable is the
The dependent variable is the
The control variable is the
