Teacher's Leaflets - Cornell University. New York State College of Agriculture. Extension Service Volume 1-13

Teacher's Leaflets - Cornell University. New York State College of Agriculture. Extension Service Volume 1-13

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ... live for some time in clear water with apparently nothing to eat. This is because the mother toad put into each egg some food, just as a hen puts a large supply of food within the egg shell to give the chicken a good start in life. But when the food that the mother supplied is used up the little tadpoles would die if they could not find some food for themselves. They must grow a great deal before they can turn into toads, and just like children and other young animals, to grow they must have plenty of food. Feeding the tadpoles.--To feed the tadpoles it is necessary to imitate nature as closely as possible. To do this a visit to the pond where the eggs were found will give the clue. Many plants are present, and the bottom will be seen to slope gradually from the shore. The food of the tadpole is the minute plant life on the stones, the surface of the mud, or on the outside of the larger plants. Make an artificial pond in a small milk pan or a large basin or earthen-ware dish. Put some of the mud and stones and small plants in the dish, arranging all to imitate the pond, that is, so it will be shallow on one side and deeper on the other. Take a small pail of clear water from the pond to the school house and pour it into the dish to complete the artificial pond. The next morning when all the mud has settled and the water is clear, put 30 or 40 of the little tadpoles which hatched from the egg string, into the artificial pond. Keep this in the light, but not very long at any one time in the sun. The children may think this is not imitating nature, because the natural pond is in the full sunlight all day. The teacher can. easily make them remember that the natural pond is on the cool earth where it cannot get very hot; but the small...show more

Product details

  • Paperback | 40 pages
  • 189 x 246 x 2mm | 91g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236859960
  • 9781236859969