1818 ACC Chemistry

1818 ACC Chemistry

Chemistry Sept 10, 2019 Do Now Density of Pennies Lab Day Collect necessary equipment for the experiment. You many begin collecting data only after your prelab is checked/initialed and both lab partners are present. (2,2,3 groups) NOTE: Because were using 100 mL graduated cylinders , use 2, 4, 6, 8, 10, 12, 14 pennies. Double check the dates on pennies you use. Objective: Density of Pennies Lab Agenda: Whats Due? Do the lab, Create your graph. Then plan and/or begin writing the report.

Write the penny lab report, Due Tuesday Sept 17 Whats Next? Unit 1 Test on Thurs Sept 19 Get out Prelab questions for Hmk Check Pick up Review WS and Study Guide Penny Density Lab Overview In 1983, the composition of pennies was changed. How did this affect their density? Purpose: To measure the density of pennies before 1983, and after 1983. How? Both the mass and volume of new pennies and old pennies are measured. Mass using an electronic scale (2 decimal places) and volume using a graduated cylinder (1 decimal place) and water displacement. Data collected for 2, 4, 6, 8, 10, 12 and 14 pennies.

Data GRAPHED such that the slope of the graph is the density. (2 graphs) Formal Lab Report writing. Penny Density Lab Report overview More details for the process posted online 1. Title and heading 2. Introduction: Info on density and using graphing to find density, volume by water displacement, context of pennies 3. Purpose: To determine density of older (before 1982) and newer (after 1983) pennies using a graph. 4. Hypothesis: Which do you expect to be higher? 5. Procedure: What YOU DID in past tense 6. Data: both mass and volume for some number of pennies.

7. Data Analysis: Graphing Mass vs Volume. Best fit line slope = density. 8. Discussion: Evaluate results with percent error. State at least two sources of error. Questions. 9. Conclusion: Refer to Purpose and Hypothesis. Exit Slip - Homework Exit Slip - Put all materials back where you found them and clean up your lab station. Dismissal only when entire room is reset. Whats Due? Write the penny lab report, Due Tuesday Sept 17 Whats Next? Unit 1 Test on Thurs Sept 19

Recently Viewed Presentations

  • Introduction to Psychology

    Introduction to Psychology

    psychlotron.org.uk. The importance of SWS. Growth Hormone is secreted during SWS. Sassin et al found that when we sleep during the day and are awake at night the release of GH is also reversed. This supports the idea that GH...
  • How to Install and Adjust a Wood Key

    How to Install and Adjust a Wood Key

    How to Install and Adjust a Wood Key Stretcher Using a Turnbuckle Adjuster The John Annesley Company home Tools and Materials Needed Turnbuckle with Screws Screw Driver Wrench Awl Side Cutters home Project Overview Turnbuckles provide a mechanical way to...
  • IBM System z Community Update - Virginia Tech

    IBM System z Community Update - Virginia Tech

    IBM Academic Initiative, System z The need for IT professionals is greater than ever Newly declared computer-science majors down 32% The number of job openings for IT professionals nationwide has increased by 47.6% from 2004 to 2006.
  • Darwin's Theory of Evolution - BucknerBio

    Darwin's Theory of Evolution - BucknerBio

    Natural Variation & Artificial Selection Natural Variation = differences among individuals of a species Variations can be inherited from one generation to the next Selective breeding = humans select desirable traits and breed based on natural variation (to improve crops/farms)...
  • Chapter 8: Major Elements - Whitman College

    Chapter 8: Major Elements - Whitman College

    Rotoinversion e. 6-fold rotoinversion ( 6 ) Note: this is the same as a 3-fold rotation axis perpendicular to a mirror plane (combinations of elements follows) 3-D Symmetry New Symmetry Elements 4. Rotoinversion e. 6-fold rotoinversion ( 6 ) A...
  • Research and the Common Core: Can the Romance

    Research and the Common Core: Can the Romance

    PowerPoint Presentation PowerPoint Presentation PowerPoint Presentation PowerPoint Presentation Kintchian Model The vision of comprehension in the CCSS maps on to important theoretical and curricular research PowerPoint Presentation Common Core NAEP PowerPoint Presentation Kintsch's Construction-Integration Model Freebody and Luke's 4 ...
  • Poetry and Australian Identities

    Poetry and Australian Identities

    Can poetry operate outside the ideological strictures of its history? Working People Poetry can also be a way of speaking for others who might be marginalised by white, european and urban society - such as the working people represented by...
  • www.whsd.k12.pa.us

    www.whsd.k12.pa.us

    Pennsylvania participates in the WIDA Consortium; the Consortium provides professional development and tester training and also manages test development. ... Secretary of Education www.education.state.pa.us The Taxonomy of Assessment Anchor Content Standards Content Area Grade Level 3.