What's Covered Today 29/1/13, Tues...
- What is a Maximum and Minimum Thermometer
- How to read the measurements..
- Practiced W/B Ex 11.1, Pg 82
- Groupwork: Had Hands-On with a real Thermometer
- Resetting of the thermometer (maximum temperature)
- Reading the temperature from the metal Index. Readings should be taken from below the Metal Index.
- Where to place a Max Min thermometer.
- In a Stevenson Screen - a white wooden box with louvers (allows air circulation & prevents direct sunlight/heat).
- It is placed about 1 meter above ground (to avoid heat radiated from ground to affect temperature) in a open field where air can circulate freely.
H/W:
For those who did not complete or asked to redo; to get Geog File decorated by next lesson.
THINKer...
Why some thermometer uses mercury and others alcohol to measure temperature?
Why some thermometer uses mercury and others alcohol to measure temperature? 
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