Even if you’re not an avid swimmer, a quick dip in the pool is so refreshing on a hot summer day. The hitch: The chlorine used to kill bacteria, viruses and other harmful microorganisms in pool water ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Chlorine is an inorganic chemical that’s used to prevent the growth of microorganisms in the water in swimming pools and hot tubs. It’s usually added at extremely low concentrations to kill the ...

There are so many upsides to pool season—fun in the sun, exercise, and welcome, cooling dips on a hot summer day. But one downside is the chemicals used to treat pool water—they easily weigh strands ...