(iv) Label Instrument 1 below and give a brief description of how it works and what weather it records. Sketch and label Instrument 2 based on the description provided below.
Instrument 1 Instrument 2
How does it work?
How does it work?
• This instrument has three cups that catch the wind as they spin atop a long poll.
• The faster the wind, the faster the cups move.
• The number of times the cups rotate fully is used to calculate the speed of the wind.
(v) A wet and dry bulb hygrometer is used to measure temperature and humidity. In the space below sketch and label this instrument and briefly describe how it works.