"He says all porous bodies absorb or suck up liquids through their pores."SUMMARY
Sponge is full of holes. These holes are called pores. Porous means full of holes. Sponge is a porous body. All things that are full of holes are porous. Bread, chalk, lump-sugar, and salt are porous bodies.
Lesson 09
The Dog
The boys came home one day full of delight. Teacher had been giving them a lesson on the dog. As they had a faithful old dog of their own, the lesson pleased them very much.
"Shall we bring Ponto in, and have a chat about him?" said Fred. Of course they all said "yes," and aminute or two later the children were sitting on the floor with Ponto in the middle.
"Now first of all, sister, what does Ponto like best for dinner?" said Fred.
"He likes a piece of meat better than anything," said Norah.
"Yes," said Fred, "the dog, like the cat, is a flesh- eater.
"Open your mouth, Ponto, and let us have a look at your teeth, old boy. Look, Norah, his teeth are sharp and pointed. They are just like the cat"s teeth. They are made for cuttingthrough flesh, not for chewing or grinding. The lower jaw has only one movement-up and down." "So far the dog is very like the cat," said Norah.