Air humidity and precipitation
Answers are for parents and teachers.
1
Write the rule for calculating relative humidity and give an example.
Relative humidity = absolute humidity : maximum capacity × 100 %; for example 15 : 30 × 100 = 50 %.
2
At +30 °C the air has 27 g of vapour. What is the relative humidity in %?
90
3
Air with 30 g of vapour cools to +20 °C (maximum 17 g). How many grams of vapour condense?
13
4
For a week record rainy days and the kind of precipitation in your notebook with symbols.
The answer depends on observation: use the textbook symbols for rain, snow, hail and fog.
5
Why is the moistening degree in deserts much less than 1?
Because precipitation is very small and evaporation large – precipitation is only a small part of evaporation.