5. Different ways of applying moist heat:
Boiling, simmering, steaming, steeping.
Note.—If the class cannot name these methods, the teacher may name and write them with only a word of comment regarding each, or they may not be given until the methods are studied.
As the moist heat methods are simpler and better known, they should be studied first. The class should be led to see that some liquid must be used to supply the moisture and should account for the common use of water for this purpose. Experiments should then be performed in heating water, and its appearance and temperature should be noted.
Note.—A preliminary lesson on the use of the thermometer may be necessary to show how to read it, and to develop the idea that it is an instrument for measuring heat. This may be taught in the regular class work, previous to the Household Management lesson.
LESSON ON THE THERMOMETER
1. Development of the idea of "measuring":
What would you use to measure the length of the table? A foot measure. What to measure the water in a tub? A pint, quart, or gallon measure. What to measure the amount of gas burned? A gas-meter.
2. Development of the name "thermometer":