WINTER EARTH STUDY. 473 



Below is a reading lesson copied from the blackboard in 

 a second-grade room in the Practice School connected with 

 the Oswego Normal School. It was gained from the chil- 

 dren by good questioning by the teacher, Miss Bessie Bloom- 

 field. It is a good illustration of such a lesson, definite, 

 clear, with successive statements well related, beginning 

 with statements of experiments and observations, ending 

 with the conclusions or generalizations. 



EVAPORATION. 



We put some water in a cup on Friday. 



We put the cup in the window. 



Monday there was not so much in the cup. 



The water went away into the air. 



Who took the water? 



The air fairies took the water. 



The water evaporated. 



Friday we put a cup of water on the window and one on the radia- 

 tor. 



The air fairies took water from both cups. 



Which cup had the least water in it on Monday ? 



The cup in the warm place had the least water in it on Monday. 



Why did the cup in the warm place have the least water in it ? 



The heat fairies helped the air fairies to take the water from the 

 cup in the warm place. 



If the heat fairies help the air fairies, the water goes away quicker. 



Apply to such phenomena as the drying of wet clothes 

 by placing them near stove or radiator, and the drying of 

 sidewalks, striving to impress the ideas: Heat helps to dry 

 wet things by making the water in them evaporate. 



Place a measured small quantity of water in a narrow, 

 deep vessel, a fruit jar, and the same quantity in a broad, 

 shallow vessel, like a plate, and put both in a warm place. 

 Put a small quantity of water in a vessel near the black- 

 board, and spread the same on the blackboard. Wet two 

 handkerchiefs, and place near radiator, one spread out " to 



