1. Monday September 22, 2014 HOMEWORK 1.Complete Cornell notes 3 QUESTIONS and SUMMARY 2.Memorize exponents for Metric Scale **TEST IS THURSDAY REMINDERS Check CALCULATOR Check the board for QUIZ grades. Retakes must be done by THURSDAY. TO DO RIGHT NOW: 1.Turn in HW “Mixed Review” odds are due today – Cornell notes over DENSITY – Basic Density Problems

2. About Miss Russell Graduated from HHS in 2010 Graduated from Texas A&M University in 2013 with a Bachelor’s of Science in Health Starting Nursing School at Texas Woman’s University in January

3. Equation D= m V D: density (g/mL or g/cm 3 ) m: mass (g) V: volume (mL or cm 3 )

4. Example #1 What is the density of a material that has a mass of 15 g and a volume of 3 mL? D = m = 15 g= 5 g/mL ______ 3 mL __ v

5. Example #2 What is the mass of an object if its density is 2 g/cm 3 and its volume is 5 cm 3 ? 2 g/cm 3 = 10 g D = m V = m 5 cm ³ _____

6. A sample of water has a mass of 10.0 g and a volume of 10.0 mL. What is the density? Half of the water is removed. What is the density? m = _______ V = _______ 10.0 g 10.0 mL D = D = 1.00 g/mL 10.0 g 10.0 mL m = _______ m v = V = _______ mvmv D = = 5.00 g 5.00 mL 5.00 g 5.00 mL D = 1.00 g/mL

8. Density Column Increasing Density Largest Density Smallest Density

9. Density Column Object Density (g/mL) granite rock2.75 plastic block1.04 Ivory soap0.9 wood block0.65 golf ball1.15 granite rock golf ball plastic block Ivory soap wood block 0.75 1.00 1.10 1.25 Density of Liquids (g/mL

10. Density Column Objects can be suspended in a density column Objects will position themselves on the column according to their densities.

12. What goes where??? Color Density (g/mL) red1.00 green0.75 blue1.10 orange1.25