Roche A. Samy
Classroom Activity
How to Test Relative Humidity:
Activities for monitoring Weather and Climate Tests like these can encourage students on the awareness of pollution.
Objective After performing this experiment, the students can demonstrate and explain a simple test of relative humidity on the school grounds, different sections of the school building or different classrooms.
The material needed is Blue Cobalt Chloride Paper (available in most drug stores or chemical supply stores.). This paper can be utilized in making a simple test of relative humidity on the school grounds. Fasten the strips of paper with spring clamp type of clothes pin to various or minutes it takes for the paper to change color from blue to whitish grey or pink.
This technique can be tried by students in a variety of locations such as under a tree, in a hole in the ground, down a sewer opening, under rocks, in the bathroom etc. The students should monitor relative humidity at different times of the day and on different days.
Questions:
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1). What is the importance of Relative Humidity?
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2). How would you feel when the humidity is high?
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3). What should be the ideal or comfortable humidity?
