Ivan J. GarciaJavier Arce presented on water quality and statistics during a RISE session. He demonstrated how to test water quality and which sources are best, noting that tap water should be run for 2-3 minutes before collecting to clear pipes of bacteria and minerals. Arce also discussed preventing impurities in water through testing, purification, boiling, and maintaining clean supplies. In the latter part of the seminar, he covered making flow charts and regressions in Excel.

1. Ivan J. Garcia<br />Javier Arce-Water ecology<br />This RISE sessionn focused on water quality and statistics. Arce demonstrated how to check for water and which water to choose from. Most people take the first water to come out of the faucet when in reality it is better to leave the faucet open for 2-3 minutes and then take that water. This is used to clean out the pipes prior to the collection of water. Bacteria like E.colli can dwell in water making it impure, as well as minerals like clay can be present in tap water. People can test amounts of bacteria by adding certain chemicals and can prevent them by having clean supplies of water, adding purifying agents to water and in case of drinking water, boiling it. After a seminar about water ecology he discussed some facts and tips about statistics and excel. Here he taught us how to make flow charts and regressions. Overall it was an educative experience and will be useful in future works. <br />