1. W ARM UP 10/9/14 Question: What is the freezing point of water? Boiling Point? Answer: Freezing / melting = 0 o C Boiling / Condensation = 100 o C Goal: I will review the phase change lab.

2. ELEMENT OF THE DAY 17 – Chlorine – Cl Chlorine was used in WWI as a deadly gas in the trenches (mustard gas). This same gas can be released if you mix chlorine bleach with ammonia – so be careful when cleaning! Chlorine is used in many useful ways. It is found in bleach (NaClO), Salt (NaCl), and stomach acid (HCl). Calcium chloride is a commonly used for melting snow and ice.

3. A GENDA - Attendance / Bellwork - Hand back papers - Review Quiz - Ice cream lab sign ups - Ice Lab Graph - Homework -Packet pg 41-42 -Warm ups tomorrow -Ch 10 test next Fri.