It can be found as a solid, liquid, or gas. It is cohesive, colorless, tasteless, odorless, and has a pH of 7. These are some of the properties of pure water. Life without water would be unimaginable. Water is one of the most important substances for organisms on Earth. It is so important as a means of sustaining life that its existence is one of the first things that scientists look for on other planetary bodies. Water is essential in agriculture, manufacturing, and the home. Based on the characteristics of the local environment, the availability of this resource affects the distribution of populations. In fact, much of the debate regarding economic growth surrounds the availability of this resource. This article describes a class activity in which students are asked to monitor the frequiency of home water use. How many times are the sink, bathtub, shower, dishwasher, or washing machine used? To answer this question, students will need to monitor water appliance use for a selected period of time. The situation of a leaking faucet can lead to an interesting scientific inquiry where students have the opportunity to discuss, hypothesize, measure, calculate, and extrapolate ways to practice water conservation. A chart for recording this activity is provided. An activity sheet provided in the article also gives a framework, to help students proceed with this investigation.