Post Pennies Lab Report - Density Of Pre/Post Pennies Charlie Habash Miranda Bailey Caden Dowlen Objective The purpose of this lab is to determine the

Post Pennies Lab Report - Density Of Pre/Post Pennies...

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Density Of Pre/Post Pennies Charlie Habash Miranda Bailey Caden Dowlen 9-28-18 Objective: The purpose of this lab is to determine the density of pre-1982 pennies and post-1983
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pennies and what effect they have with the differences of density to one another. The pre pennies made before 1982 contain 95% copper and 5% zinc. The post pennies made after 1983 contain 95% zinc and 5% copper. Factoring the difference in the metal between the two pennies these should have a mass effect between the two. Materials and Procedure : The materials that you will use for the lab are 25 pre-1982 pennies, 25 post-1983 pennies, a triple beam balance, a 50-mL graduated cylinder, and paper towels. Gather 25 pre-1982 pennies and 25 post-1983 pennies. Then choose whichever to gather the mass from. Then put 5 pennies on the the Triple beam balance then record. After that put another 5 pennies and record the mass until all 25 pennies are on the Triple beam balance. Fill the 50 mL graduated cylinder with 20 mL of water. Gently drop 5 pennies in the graduated cylinder and record the volume. Add 5 more pennies
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  • Fall '09
  • CharlesE.Workman

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