STOP: Can you drink that water?
Curriculum supplemental file index
Important instructions on how to prepare materials, set up the lab spaces, and clean or dispose of equipment and cultures are included.
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STOP: Can you drink that water?Curriculum supplemental file index |
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| The information is provided as a three day curriculum. Day 1 introduces the topic and Days 2 and 3 include experimentation and data analysis. We have also offered the curriculum in two days, where Day A combines preview and experimental setup, listed here as Days 1 and 2, and Day B focuses on data analysis and discussion. Important instructions on how to prepare materials, set up the lab spaces, and clean or dispose of equipment and cultures are included. |
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| INSTRUCTOR'S PREPARATION, CLEANUP AND SAFETY INFORMATION | ||||
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Working with environmental samples brings inquiry and the unknown into the classroom. The handout provided includes instructions on proper safety procedures to follow during the laboratory and when disposing of bacterially contaminated plates and equipment. Format: docx | |||
| DAY 1: | DAY 2: | |||
| Presentation 1: Where do you get your water? | Water testing and treatment lab activity | |||
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Introduction to topics of bacteria, seletive growth media, water treatment and water quality Format: pptx | Instructions for two part plating experiments. Part 1: Serial dilutions onto selective media to determine the number and types of bacteria in the lake water. Part 2: Bleach treatment to determine the amount of bleach needed to disinfect the water. Format: docx | ||
| Reactivity worksheet | ||||
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Worksheet that accompanies the optional reactivity activity. Can be modified to be used with a teacher demonstration, small groups or individuals. Format: docx | |||
| DAY 3: | ||||
| Data collection and analysis | ||||
| Questions to guide discussion of the data collected during the water testing and treatment activity. Format. docx | ||||
| Presentation 2 : Water Purification Byproducts | ||||
| Introduction to byproducts, the concept that interactions and reactions continue and empowering information regarding ways to check on your own water quality and who to contact with praise or concerns. Format: pptx | ||||
| Making your voice heard | ||||
| Handout including links to local services and government offices. Template that can be modified for the school's town and state. Format: docx | ||||