1. Read & take notes over 3.3, pg 63-67 (Units of Measurement) Read & take notes over 3.4, pg 68-73 (Density) Read & take notes over 3.5, pg 74-76 (Temperature) Concept Quiz Friday over Ch1, Ch2 and 3.1 & 3.2

2. In your notes, describe the demonstration and make any observation you feel are important Is this a chemical or physical change? What are some indications of a chemical change? A physical change?

3. What is the volume in the following containers? Always estimate the last digit

4. Imagine a map of the US: If the decimal is Absent, count from the Atlantic side If the decimal is Present, count from the Pacific side Always start counting with the first non-zero digit Pacific Side (decimal is present) Atlantic Side (decimal is absent)

5. Determine the number of sig figs in the following: 100 100. 40.0 0.0081 2.075 5000 1 sig fig 3 sig figs 2 sig figs 4 sig figs 1 sig figs