88 NATURE-STUDY LESSONS. 



3. When does it first bloom ? 



4. How late in the year have you found it flowering? 



A. The Boot. 



5. {a) Carefully dig up from soft soil a dandelion plant 



with all the earth about it and by carefully 

 moving it up and down in a pail of water 

 wash off the soil. 

 {b) Describe the root as to its parts, length, shape 

 and direction of growth. 



6. (a) Remove two dandelions from the soil as above. 



Leave one on a board in the sun, place the 

 root of the other in water and note the effects. 

 {b) Infer from this one of the essential conditions 

 to the life and growth of a root and plant. 



7. Why do we water potted plants .' 



8. Through which part is this moisture taken into the 

 plant } 



9. What is one of the uses of the root to the dandelion .' 



10. (a) Strip a dandelion of its very fine rootlets, leav- 



ing the thick root. Plant this in a pot. 



{b) Compare the length of time the plant will live 

 in this condition with the length of time 

 a plant, with all its rootlets intact, will live 

 if similarly planted and watered. 



(c) Infer from this which part of the root system 

 more particularly performs the function of 

 absorbing water. 



1 1. Account for the development of so many rootlets 

 in the dandelion. 



12. Try to pull up a dandelion and infer another pur- 

 pose served by the root. 



