What do you mean by humidity and what is the instrument used to measure it? [2 MARKS]
Each point: 1 Mark 1. Humidity is a measure of the moisture in air. 2. Hygrometer is used to measure humidity.
Define humidity and name the instrument used to measure it. [2 MARKS]
What do you mean by heat? How is it measured? Which thermometer is used for measuring the human body temperature and how is it different? [5 MARKS]
What do we mean by churning? Where is it used? [2 MARKS]