Mass of a paper clip. By using multiples of six (6) clips measure the mass of each collection of clips. Remember that each member of the group must measure each collection of clips. As a group you should reach a consensus to read each value to either one or two decimal places. Keep track of your significant digits and place units on every measurement! Be certain that you only use LARGE paper clips. A copy of this chart must be kept in your notebooks.
Number of Clips

Reader #1

Reader #2

Average Mass

6




12




18




24




30




36




42




48




54




60




Volume of a paper clip. By using multiples of six (6) clips measure the volume of each collections of clips. Also, note that the all clips must be TOTALLY submerged before you read the volume of water. Since your graduated cylinders are marked off in 1 ml increments, you can only estimate one (1) decimal place. Remember that each member of the group must measure each collection of clips. Also, remember to keep track of your significant digits and to place units on every measurement! Completely submerge 6 paper clips at a time in the water and record the new water level. Then, subtract the original water level from the new water level to determine the amount of water displaced by each cumulative collection of paper clips. After each group member has made his/her measurement, calculate the average change in water volume for each group of clips. ALERT: since 1 ml of water is displaced by each cm^{3} of solid paper clips, this average value needs to be expressed in cm^{3}.
Original water levels: Start as close to 85.0 ml as possible; each person's starting point can be slightly different if necessary. Record all of your water levels readings for your graduated cylinder in the chart below.
Number of Clips

Reader #1

Reader #2

Average Volume of Clips

original water _____ ml

original water _____ ml

new water level

net water displaced

new water level

net water displaced

6






12






18






24






30






36






42






48






54






60






Graphical Analysis. EXCEL will now graph your data. Minimize your browser, double click My Computer, double click the shared drive called colwell/bay on Lederman, double click your period's folder and then finally double click 1density.xls. You will most likely be asked to open the file as "read only"  that is fine. As soon as the file is open, use File Save As to rename the file as LastnameLastnameDensity.xls in your period's folder. This copy of the file now belongs uniquely to your group. Remember that there are to be no spaces in the file name. 