56. Water has an elastic surface. 



Experiment 50. Surface tension. 



57. Disease and bad odors may be prevented by solu- 



tions. 



a. Antiseptic washes. 



b. Disinfectants. 



c. Deodorants. 



(This subject, Water, is continued in the work 

 for the seventh grade.) 



PLANTS AND ANIMALS. VI. 



58. A brief summary of the facts stated under the 



same topic in the work for the fifth grade. 



59. Names of the common vegetables. 



Experiment 31. Draw or model the 

 vegetables. 



60. Roots. 



a. Need air. 



Experiment 52. Roots need air. 



b. How roots obtain food from the soil. 



61. Plant stems. 



a. Different kinds. 



b. Use and construction. 



Experiment 53. Structure and use of 

 stems. 



62. Linen. (See Section 96.) 



63. Leaves. 



a. Construction of leaves. 



Experiment 54. Skeleton leaves. 



b. The food the leaf makes. 



Experiment 55. Starch from leaves. 



c. Leaves give off water. 



Experiment 56. Transpiration. 



