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Measuring Volume Using a Graduated Cylinder

Learners view an explanation of how to read a graduated cylinder by measuring the lowest portion of the meniscus. A quiz completes the activity.
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Comments

9/11/2008 You are not accepting volumes read to the correct number of significant figures which makes this useless for chem or physics students.

12/1/2007 I, too, would like to see the measurements recorded with the proper number of significant figures. I teach my students to record 1 decimal place beyond what is marked (the "uncertain" digit).

9/4/2005 I agree w/ ebucholtz. someone could easily estimate the volume to be not exactly 56. for many of the problems, the meniscus was not exactly on the line, and was actually a little more than the answer told you. I think to make sure a student understands how to measure correctly, the answers should be correct.

8/11/2004 I think that this could be a really good activity if the concept of error and sig figs are introduced. All of the activities end with a miniscus on a gradation. For example, on slide 8 the correct answer is 56 mL. However the student could easily estimate the volue at 56.0 mL. I would also like to see an example where the student could give an answer for 56.5 mL. The example on slide 9 could easily be read as 4.33 mL estimating the volume between gradations.

6/17/2004 Hello, So far Ive learned quit a bit about lab emergencies and other helpful things while working in a lab.

1/22/2004 I like exercises such as these. I think students will know more.

7/31/2003 Good introduction to the graduated cylinder.

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