Starting Point 2.14.13 Late = Up to Unit Exam @ 75%. After = 50% Absent = # of days+1 @ 100% credit. Both must be Complete/Corrected. Welcome to Science!!! Science Due: 1. Mass/Volume/Density Lab Do: 1. Discuss Density Lab. 2. Define Mass/Volume/Density in notes. Homework 1. Study for Quiz. Starting Point (Copy and Answer) Q/D: Density = Mass/Volume, Mass = 400.0g, Volume = 1000.0 ml, Density = ??? A: >>>>>>>>>>>>>>>>>>>>>> >>>> Notes: N/A http://www.google.com/url?sa=i&rct=j&q=volume+in+a+beaker&source=images&cd=&docid=SWH9CcutudLHFM &tbnid=dqx_UbMAzv11AM:&ved=0CAUQjRw&url=https%3A%2F%2Fgblog.garlandisd.net%2Fusers%2Faariza%2F &ei=VFEaUemGJePtiQK8-YCwCg&bvm=bv.42261806,d.cGE&psig=AFQjCNHYqk6aZ8bq3gP5QlTrfhEO8pGww&ust=1360765641734898 Name of Object and “Matter”ial Volume (ml or cm3) Mass (g) Density (g/ml or g/cm3) 1.Wood Cylinder [π(1.25)2] x 20.2 = 99.11cm3 66.45g 0.67g/cm3 2. Plastic Die (1.5)3 = 3.375cm3 6.0g 1.78g/cm3 2x2x6 = 24cm3 10.5g 0.4375g/cm3 (0.44) 4.Rubber Stopper (55.0-45.0)ml = 10.0ml 11.8g 1.18g/ml 5.Wood Baby Block (3.2)3 = 32.77cm3 18.5g 0.565g/cm3 (0.57) 6.Long Rectangular Wood Block 12.5x3.8x2.0 = 95.0cm3 69.0g 0.73g/cm3 7.Large Rectangular Wood Block 7.65x5.0x5.0 = 191.3cm3 84.4g 0.44g/cm3 (675.0-600.0)=75.0ml 174.5g 2.33g/ml (625.0-525.0)= 100.0ml 271.5g 2.72g/ml 20.0 ml 32.5g 1.625g/ml 3.Small Rectangular Wood Block 8.Fractured Rock 9.Complete Smooth Rock 10.Plastic White Out Bottle 1. Which objects will have similar density values? 2. Did any of the objects have similar/ matching density? Why? 3. Water has a density of 1.00 g/ml or 1.00 g/cm3. Would any of the objects float? 4. Why were objects more dense? 5. Why were objects less dense? 6. Does the size of an object/substance effect the density of the object/substance? Explain. 7. Does the shape of an object/substance effect the density of an object/substance? Explain. 8. Does the material an object is made of effect it’s density? Explain. No Credit on Labs until Lab Safety Contract turned in: P3 L. Bee K. Stalnaker C. Valencia P6 M. Berthelson *T. Hermansen L. Wilkinson P7 R. Dos Santos *D. Nguyen L. Swapp-Mescheryakova