Friday, February 6, 2015

Lesson 2 From Rain to Tap

Lesson 2
From Rain to Tap

Earth Science Standard:
Students know the origin of the water used by their local communities.

In this lesson, students learn about Southern California's water sources and the various parts of the water delivery system. They will design water treatment strategies to remove contaminants from "wastewater".

  • How Does Water get to my faucet?

  • What happens to water after I flush the toilet?

  • How does a treatment plant clean my water?

Most of the rain in California falls in the north, so most of the rivers and lakes in California are in the north. In California, rainfall is uncertain from year to year. The population in California is getting larger, and 75% of the population is in the south. 


California Water Sources (page 32)

Look at all the water sources for the Los Angeles area.

 

Sparkling Water Experiment

  • What were the easiest materials to remove?

  • What materials were difficult to remove?

  • What materials may remain even after treatment?


    Water Treatment Plant

    This diagram comes from the L.A. County Sanitation District site; http://www.lacsd.org  

     

    Home Extension Examples

    Hazardous                                           Safe (Biodegradable)

    1. Bleach                                                    1. Vinegar



     

1 comment:

  1. This blog post is for the SRod and Batres classes. Thank you so much for being flexible and a great group to work with. See you Wednesday, the 11th.

    ReplyDelete