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Drops on a Penny – Feb 9

Drops on a Penny – Feb 9. Attendance Sources of Error Analysis and Conclusions. Sources of error. Systematic Errors- Penny Lab. Inaccurate counting Improper cleaning of penny between trials Different concentration of testing liquid on the penny (E.g., salt added to water not measured)

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Drops on a Penny – Feb 9

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  1. Drops on a Penny – Feb 9 • Attendance • Sources of Error • Analysis and Conclusions

  2. Sources of error

  3. Systematic Errors- Penny Lab • Inaccurate counting • Improper cleaning of penny between trials • Different concentration of testing liquid on the penny (E.g., salt added to water not measured) • Size of the water droplets • Size of the eyedroppers • Etc.,

  4. Analyze the data and draw conclusions. • Write a paragraph below (using complete sentences) that explains how your independent variable affects the the number of drops that can fit on a penny , using your data to help you answer the question. Suggest a reason for your observations(Why did it happen). Support or reject your hypothesis. • You should also include any possible sources of error. This is especially important if anything went wrong during the execution of the lab, but should be addressed regardless of any known errors. Other questions you may address include: • Did you identify any possible improvements or changes if you were to do the lab again? • Did your lab or outcomes generate any additional questions to explore?

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