Join our guest speakers to learn about lead contamination in our water and its impact on our health. You will also learn a quick and easy way to identify the piping materials used in your home. To participate in the hands-on activities during the program, please have the following materials ready: 1 penny 1 magnet 1 chemistry strip (optional) Registrants of this program in the Los Angeles area can pick up the (optional) chemistry strip at one of the participating Neighborhood Science Branches between March 14 - March 22 while supplies last. Neighborhood Science (NeiSci) Tuesdays is a weekly program series about learning and doing science and sustainable practices for your neighborhood. For ADA accommodations, call (213) 228-7430 at least 72 hours prior to the event. Para ajustes razonables según la ley de ADA, llama al (213) 228-7430 al menos 72 horas antes del evento.