A group of pupils carries out an activity using model cars.
The bar chart shows the information they have obtained.
1) What is the aim of the investigation?
.....To investigate the relationship between the number of batteries and the speed of the model cars.
2) State two variables in the investigation.
.....Speed
.....Number of batteries
3) What is the relationship between the variables that you have mentioned in (2)?
.....The more the number of batteries used, the greater the speed of the model cars.
4) What conclusion can you make based on the bar chart?
.....The number of batteries affect the speed of the model cars.
