66 Our Surroundings 



3. Study and report on the devices used to distribute and regulate the 

 supply of water in your home. 



4. Carry out a series of experiments to show the great solvent power of 

 water. 



5. Make a labeled drawing of a septic tank. 



OUTDOOR OBSERVATION 



1. Observe and list the visible effects of a heavy rain on soil and plant life. 



2. Observe and record effects of frost. 



REFERENCES 



Community Hygiene Woods Hutchinson 



How to Prevent Typhoid Fever 



Farmers' Bulletin 478, U. S. Dept. of Agriculture 



Water System for Farm Homes 



Farmers' Bulletin 941, U. S. Dept. of Agriculture 



