Seeds and How They Grow 513 



7. State the conditions necessary for germination of seeds. 



8. Describe an experiment to show that carbon dioxide is produced during 

 germination of seeds. 



9. Describe an experiment to show the necessity of stored food in seeds to 

 insure germination. 



10. Name and describe the parts of a seed. 



11. How does nature scatter seeds? 



12. Why do deep-rooted plants endure drought better than shallow-rooted 

 ones? 



13. Why is occasional thorough watering of potted plants better than fre- 

 quent slight watering? 



14. Why do transplanted plants often wilt and then revive? 



15. At what stage of its development can a plant do without light? 



16. Discuss the economic importance of seeds and their products. 



PROJECTS 



1. Make a collection of various kinds of seeds of economic importance. 

 Place each kind in a separate small bottle and label. 



2. Plant and cultivate a row of beans in your home garden. Record in 

 your notebook the progress of the growth of the plants, and the 

 number of quarts in the crop. 



OUTDOOR OBSERVATION 



1. On your walks, collect as many different kinds of seeds as possible. 

 Observe what provisions Nature makes to aid in their protection until 

 ripe and to aid in their distribution. 



2. Observe seedlings of different kinds of plants at different stages. 

 Record your findings. 



REFERENCES 



Lessons in Botany Atkinson 



The Teaching Botanist Ganong 



