Before you begin the scientific investigation below, make sure to download the Measuring Humidity Scientific Investigation Report. As you complete this scientific investigation, fill in any needed information on the report template. If you need more information about each section of the report, please visit the Developmental Module.
This scientific investigation is available below or in a printable version.
Introduction
Relative humidity describes the amount of water vapor in the air. Air is generally described as being saturated or unsaturated. Relative humidity gives meteorologists an idea of how close air is to being saturated with water vapor.
Objectives
In this scientific investigation, you will:
Hypothesis
Using the Procedure and Data Collection section below, read through the procedural information for this scientific investigation. Based on your understanding of the procedure, develop your own hypotheses which describe your expected results. Specifically, how will the relative humidity inside of your house or classroom compare with the relative humidity outside? Record these hypotheses in the Hypothesis section of your Measuring Humidity Scientific Investigation Report.
Equipment and Materials
Procedure and Data Collection
Data
Use the table provided in the Data section of your Measuring Humidity Scientific Investigation Report to record your data from this scientific investigation. The data table is also shown below:
Inside Environment | Outside Environment | |
Dry-bulb Temperature (°C) | ||
Wet-bulb Temperature (°C) | ||
Difference between dry-bulb and wet-bulb temperatures (°C) | ||
Relative Humidity (%) |
Data Analysis
In the Data Analysis section of your Measuring Humidity Scientific Investigation Report, provide responses to the following questions:
Conclusion
Using the Conclusion section of your Measuring Humidity Scientific Investigation Report, compose three to four sentences describing an overall conclusion based on your data. Were your hypotheses true or false, and how do you know? Use the data and notes that you collected from your investigation to form your conclusion. Make sure that you include information that you gained from data analysis to support your conclusion.
Experimental Sources of Error
On your Measuring Humidity Scientific Investigation Report, provide responses to the following questions: Are there any sources of error? If so, what are they, and what could be done to minimize error?
Once you have completed the Measuring Humidity Scientific Investigation Report, please submit your work to the dropbox.