366 A YEAK IN SCIENCE 



Paints, powders, and other external applications for 

 beautifying the complexion not only do not beautify 

 it but are often injurious. They always clog the pores 

 and sometimes they contain poisonous substances. Any- 

 thing which will tend to improve the health of the body 

 such as good exercise, plenty of fresh air, and the 

 proper food will improve the skin and make it far 

 more beautiful than any artificial applications. 



Questions 



1. Name the principal waste products in the body. 



2. By means of what organ is each removed from 

 the body? 



3. Why is it important that these waste materials 

 should be removed? 



4. Where are the kidneys located in the body? 



5. Describe the structure of the kidneys. 



6. How do the kidneys work? 



7. Name four functions of the skin. 



8. What is the structure of the epidermis? 



9. Name the parts found in the dermis. 



10. Describe the sweat glands. State definitely 

 their functions. 



11. What is the best treatment for keeping the hair 

 in a good condition? 



12. Explain fully the source of heat in the body, 

 how this heat is distributed, and how the temperature 

 of the body is regulated. 



13. How may the complexion be improved? 



14. What are the best methods for taking care of 

 the skin? 



