Materials List: 10 one gallon jugs, science learning logs
Display the 10 one gallon jugs. Using the SPAWN strategy (view literacy strategy descriptions), write the following prompt on the white board or chart: “What if you and your family were limited to ten gallons of water per day? How would this affect your life?” A discussion of the ways we use water at home (cooking, washing, drinking) may help the students as they respond to the prompt. SPAWN is an acronym that stands for five categories of writing options (Special Powers, Problem Solving, Alternative Viewpoints, What If, and Next). This is an informal type of writing that gets students thinking about the content to be presented or reflect on what has just been learned. Have students copy (or provide response sheets with prompt) and respond to the questions in their science learning logs (view literacy strategy descriptions). After an appropriate amount of time have volunteers share their responses. Encourage students to engage in a discussion of some of the ideas presented by their peers. Students can also discuss how “needs and wants” come into play when using/consuming water. If no one brings it up, have students consider what effect the number of family members may have on the use of the water.
Finally, facilitate a discussion about why it is important not to waste water and to conserve water, when possible. Encourage students to think back to what they learned about usable water in the previous activity.