Task = Calculate the daily and weekly amounts of water that is wasted by wasteful and non-wasteful tooth brushers.

–       How much water will be wasted in a day by a wasteful and non-wasteful too tooth brusher if they brushed their teeth twice a day?

–       How much water would be wasted in a week by a wasteful and non-wasteful tooth brusher?

–       Record your results and explain what this may mean for our water supplies.