Experiment 1 Effects of Density In this experiment you will observe how the density of various materials affects their vertical arrangement in a density column You will also observe the behavior of ice and water and draw conclusions about the molecular arrangement of each By definition water has a density of 1 gram cubic centimeter However the density of every liquid is not the same This principle is often used in the oil industry to separate hydrocarbons from water Some liquids like oil have densities of around 0 91 g cm 3 Such a liquid would float on water because it is less dense Solids also have varying densities causing them to either float or sink in water Materials 1 100 mL Beaker 1 250 mL Beaker 1 50 mL Cooking Oil 1 Cork 1 50 mL Corn Syrup 1 Drop Food Coloring 1 100 mL Graduated Cylinder 1 Plastic Coffee Lid Scissors 1 Washer 100 mL Water You Must Provide Procedure 1 Use the graduated cylinder to measure 100 mL of water and pour it into the 100 mL beaker 2 Add one drop of food coloring to distinguish it from the other liquids 3 Pour the water into a 250 mL 4 Use the 100 mL graduated cylinder to measure 50 mL of corn syrup and pour it into the 250 mL beaker 5 Use the 100 mL graduated cylinder to measure 50 mL of cooking oil and slowly pour it into the 250 mL beaker 6 Once all liquids have been added allow the contents of the beaker settle for a few minutes Observe and record the order of the different liquids in Post Lab Question 1 7 Use the scissors to carefully cut the plastic coffee lid into four pieces 8 Carefully without splashing the liquids drop the washer of the plastic coffee lid and the cork into the beaker Observe what liquid each object settles in Record your observations in Post Lab Question 1 2014 eScience Labs LLC All Rights Reserved Post Lab Questions 1 Sketch and label what the arrangement of objects and liquids in the beaker Oil on top water in middle and corn syrup on bottom Cork floats on oil plastic lid floated on water and washer sank to bottom 2 Rank the liquids and solids in order of least to most dense and use your results to explain you reasoning 3 Which of the solid materials used in this experiment would make the best boat Why 4 Would it be easier to design a boat in a world with oceans of maple syrup than oceans of saltwater What property of maple syrup might prevent boats from traveling in it very effectively compared with in water 2014 eScience Labs LLC All Rights Reserved
View Full Document
Unlocking...