InTeGrate Modules and Courses >Water Science and Society > Student Materials > Module 2: Climatology of Water > Relative Humidity > Formative Assessment 2: Relative Humidity and Dewpoint
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### For the Instructor

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Initial Publication Date: March 31, 2017

# Formative Assessment 2: Relative Humidity and Dewpoint

### Instructions

Answer each question in 2-3 complete sentences. Consider each question carefully and be sure to provide a complete answer.

### Questions

1. For an air mass at 25 ° C, and with a water content of 10 g/m3, find the relative humidity and report it. Also report the dewpoint.
2. If that air mass is heated to 35 ° C, what would the relative humidity be?
3. Imagine that it is 22 ° C outside, and currently foggy and drizzling. How much H2O vapor is in the air (report your answer in g/m3)?
4. Report your current location, and the relative humidity and temperature there. Also report the dewpoint.
5. Look at the weather forecast. What is the low temperature forecast for the next 24 hours? Do you think it will rain or snow? Why?

### Worksheet

Download the worksheet (Microsoft Word 2007 (.docx) 60kB Mar28 17) to be used when submitting your assessment.

### Scoring and Rubric

Each answer will earn a maximum of 5 points, as described in the rubric below.

Rubric of the Formative Assessment 2
Work ShownPossible Points
Answer reflects careful consideration of the question2