APPENDIX 189 



Seventh Grade. 



PRESCRIBED. 

 DISTILLATION of water. 

 FJROST AND ICE. Formation of frost. 



Temperature melting ice. 



Temperature freezing mixtures. 



Why ice floats. 



Manufacture of artificial ice. 



Application to geographical features. 

 LIFE HISTORY OF PERNS. 

 OXYGEN AND CARBONIC Aero. Preparation. 



Properties. 



Uses. 



Application to human life, plant life, etc. 



DIFFUSION OF GASES. 



STUDY of the candle flame. Parts of the flame. 



How the flame is produced. 



Use of different material for producing flame. 

 ILLUMINATING GAS. Preparation of gas in the schoolroom. 



Process of burning in coal and wood. 



Preparation of gas for use in city. 



Visit to gas works. 

 PLANT PHYSIOLOGY. Growth and use of root hairs. 



The plant's food. 



Show that plants take up water. 



Show that water escapes from plants' leaves. 



Trace course of water absorbed by roots. 



Examination of stomata. 



Material of soil dissolved in water and used by plant*. 



Making, using and storing starch in the plant. 



Food of mushrooms, moulds and the like. 



Food of lichens. 



Food of mistletoe, dodder, etc. 



ELECTIVE. 



SELECT one subject from Elective List No. 2. 

 SFLECT one subject from any outside source. 



