Systematic Science Teaching. a Manual of Inductive Elementary Work for All Instructors
The book Systematic Science Teaching. a Manual of Inductive Elementary Work for All Instructors was written by author Edward Gardiner Howe Here you can read free online of Systematic Science Teaching. a Manual of Inductive Elementary Work for All Instructors book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Systematic Science Teaching. a Manual of Inductive Elementary Work for All Instructors a good or bad book?
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141 SYSTEMATIC SCIENCE TEACHING. consists of small animals which live near the surface of the sea. * 13. These tiny creatures are secured by means of the whalebone strainer this whale has in its mouth. Opening the huge mouth, the whale swims along near the surface till a quantity of food is collected, and then, by closing the mouth and raising the head, the water is got rid of, the small animals being retained by the plates of whalebone, and the food swallowed. 14. This whale has to come to the... surface at intervals of ten to twenty minutes to expire the impure air from its lungs and take in fresh air. The warm breath from the lungs coming in contact with the cool air forms a column of steam. This " spouting " is not a jet of water, as many suppose. 15. To protect this warm-blooded animal from the chill of the cold water, it is covered with a thicJc layer of blubber or fat. 19. Whales are seldom aggressive, but in trying to es- cape, or in the death agony, their tails are dangerous, crushing a stout boat like an eggshell.
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