We asked our families where our water comes from - town water or our own water tank. This is the chart we made to show what we found out.
Alby counted the difference between the two sides. "Four more people have tanks," he said.
We went outside and made our chart again on the court. Ms Lynagh helped us turn it into a bar chart.
Do you think more people in Room 3 live in Raglan town, or outside Raglan town?