XVII. FEOST 



Material. Have the pupils bring pieces of board or other things cov- 

 ered with frost. Meet the pupils out of doors before school, and call their 

 attention to the forms of frost on the shady side of the schoolhouse. Use 

 a magnifying glass if possible. While the pupils are looking recall to them 

 how water freezes and how snowflakes look. 



Observation. On what do you find frost? Is 

 there any on the bare ground? On what does it 

 show the most plainly ? How does the frost look at 

 a distance ? 



Is the frost in a white coating like paint, in grains 

 like flour, in needles like ice, or in stars and wheels 

 like snow ? Look for flat particles of frost. How 

 many straight sides has one of the particles ? Do 

 you find any frost stars, any rosettes or other 

 figures ? 



Do the frost particles stand on end or lie flat on 

 their sides ? What is the shape of the particles that 

 glitter in the sunlight ? Does frost on the grass glit- 

 ter as much as frost on a board or fence? Do you 

 find a reason for this ? 



Drawing and Composition. Write a description of 

 the frost that you observed. Illustrate your work 

 with pictures of some of the frost shapes that you 

 saw. 



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