How much water do you waste when you brush your teeth?
Use this free lesson to find out how much water people waste when they leave the water running for two minutes as they brush their teeth. Worksheets are provided for your students to find out how much water was wasted when Bianca kept the water running while she brushed her teeth for two minutes versus when she wet her tooth brush, turned off the water while she brushed her teeth, and then turned on the water to rinse her mouth.
Students find out how much water was wasted in one day, week, month, and year. There are two types of worksheets provided. One uses liters if your class is familiar with the metric system and the other worksheet uses cups if your class is familiar with the standard system.
Worksheets are provided to have one student in your class do the same activity as Bianca or all of your students may do the exploration activity as a homework assignment.
Students are then asked to take a pledge to turn off the water while brushing their teeth. They are also asked to tell other people they know to not waste water when brushing their teeth. We have provided a certificate you may give to your students after they have helped spread the word on how everyone can conserve a lot of water simply by turning off the water while they brush their teeth.
Thank you for using our free lesson in your classroom,
Members of Robot-O-Build
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