338 Our Surroundings 



5. What sports do you take part in? How does each benefit you? 



6. In what ways outside of sport have you exercised today? 



7. Why is running upstairs harder work than running on a level path? 



8. Is deep breathing an exercise? 



9. Discuss the merits of different forms of exercise. 



10. Why is it less wearisome to walk "up hill and down dale" than for 

 a long distance on a level? 



11. State the effect of alcoholic drink on the muscles of the body. 



PROJECTS 



1. Discover and describe structural adaptations in your body. 



2. Describe your favorite recreational forms of exercise. 



OUTDOOR OBSERVATION 



On the way to and from school, observe people engaged in different 

 occupations, sports, or other activities. Note which activities seem to 

 exercise the body generally; which exercise particularly certain groups 

 of muscles ; which make seemingly heavy demands on a few muscles ; 

 and which might be said to give severe exercise. Record your findings. 



REFERENCES 



The Human Mechanism Hough and Sedgwick 



The Human Body Martin 



