EXERCISE 92 



HOW DO EARS OF CORN DIFFER IN WEIGHT? 



Materials. Same as in Exercise 91. 



Directions. Each pupil should weigh accurately one ear of corn and record the weight on the 

 board at the side of the number of grains on this same ear. Copy all the weights in your notebook. 

 Underline the heaviest and lightest ears. Are these ears the same ones which have respectively the 

 largest and smallest number of grains? 



Additional problems. Are most ears heavy, light, or medium ? 



Is your choice of the best ear for planting changed by the above calculation ? 



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