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Warm up 10/10/14. Question: What happens to the temperature of a substance during a phase change? Answer: It stays the same Goal: I will explore phase change graphs. ELEMENT OF THE DAY. 18 – Argon – Ar
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Warm up 10/10/14 • Question: What happens to the temperature of a substance during a phase change? • Answer: • It stays the same • Goal: I will explore phase change graphs.
ELEMENT OF THE DAY • 18 – Argon – Ar • Argon is the cheapest of the noble gases, and is almost completely unreactive. It is colorless normally, but glows sky blue when current is run through it. • Argon, mixed with nitrogen, is used in light bulbs to keep the filament from catching on fire.
Attendance / Bellwork • Collect bell work • Review 37-38 • Review & collect lab • Phase Change Sheets (43-46) • Homework • Per 1,2,8: pg 43-46 • Per 4,6 : 43-44 • Ch 10 Test next Friday. Agenda