Experiments

A dependent variable is

• shown on the x axis of a graph

• shown on the y axis of the graph

• the thing that you alter to compare

• the thing you keep the same

• the thing you measure

An independent variable is

• shown on the x axis of a graph

• shown on the y axis of a graph

• the thing you alter to compare

• the thing you keep the same

• the thing you measure

A control variable is

• the thing you alter to compare

• what makes a test fair

• the thing you keep the same

• the thing you measure

A bar chart shows

• two measurable sets of data

• with one measurable set of data

• bars with gaps between

• bars without gaps between

A line graph shows

• two measurable sets of data

• one measurable set of data

• a scale on each axis

• a line of best fit

• a line joining all the plotted data

A linear relationship is

• shown by straight bars using a ruler

• a line graph

• when values increase at the same rate

• shown by a straight line on a graph

• when values decrease at the same rate

The x axis on a graph

• represents the dependent variable

• represents the independent variable

• is horizontal

• is vertical

The y axis on a graph

• represents the dependent varaible

• represents the control variable

• represents the independent variable

• is verticle

• is horizontal

Units should

• always go up in 5's

• be written in brackets on an axis

• go up in equal increments

• not feature on a graph

A 'trend' on a graph is

• a pattern seen in the results

• the fashionable colours used

• data that helps you predict over time

• the most popular choice