Chambers's Elementary Science Readers Part 3

12. 'Now,' said mother, 'let us give father a treat when he comes home!

We will make some nice cakes with this flour, and have them for tea!

Grind a little more, dear millers, while I make up the fire.'

[Ill.u.s.tration]

SLATE.

PART 1.

rid'-dle ex-act'-ly guessed won'-der bought Sat'-ur-day sup-pose'

fin'-gers met'-al smooth re-mem'-ber piece

1. 'What is the oldest thing in this room?' asked the mother one day.

'Is this a riddle?'

'No, not exactly.'

2. Dora guessed one thing, and Harry another, and at last they gave up guessing. 'Unless,' said Harry, 'it is the fender, or the poker.'

3. 'It is very likely that the thing you were drawing on just now is older than any of those.'

4. 'That slate? Why, mother!' cried the children, opening their eyes wide with wonder, 'you bought it only last Sat.u.r.day!'

'So I did. But it was not made last Sat.u.r.day.'

5. 'No, I suppose the man cut it, and made the frame, and fixed it on before that.'

'Perhaps on Friday,' said Dora.

6. 'But the slate itself,' the mother went on, 'where did that come from? Did the man make it?'

Harry and Dora looked well at it, turned it over, rubbed their fingers on it, and said they did not know.

7. 'Well, would you say it is like wood, or like stone, or is it metal like the poker? Is it a kind of wood, do you think? Did it ever grow?'

'I think it must be a sort of rock, or stone,' said Harry, 'only very smooth and thin.'

8. 'The man who worked at it before it came to the shop made it smooth and cut it thin. It was not smooth and thin at first. But you are quite right; it is a sort of stone.'

[Ill.u.s.tration: A Slate Quarry]

9. 'It is as cold as a stone,' said Dora, putting it against her face.

'Do you remember, Harry, how cold our hands were in winter when we did sums? Yes, and it is very hard. I am sure it is a piece of rock.'

SLATE.

PART 2.

should laughed high'-er thought laugh'-ing pur'-pose prop'-er-ly please set'-tled hap'-pened deal dead weighted through heaved brok'-en

1. 'I should like to see a rock all made of slate! Have you ever seen one, mother?'

'Yes, many, dear. But there are none near.' Then she laughed a little.

'But if you like to go just outside the door you will see rows and rows of slates.'

2. Out they ran, looked all over the ground, then at the garden-wall, then back at their mother, who had come to the door.

'Look at the house,' she said, 'look higher!'

3. 'Oh, we never thought of the roof,' they cried, and ran in again laughing. 'But those slates are not so nice and smooth as our slates.'

'Your slates are made smooth on purpose. Besides, they are made of better slate--older slate. The older the slate is the better it is.'

4. 'How old?'

'No one knows. It is a long story, and no one can tell it properly.

Shall I tell you as much as I know?'

'Yes, do, please, mother!' and the two settled themselves at her feet.

5. 'Well,' she began, 'once upon a time there was a great stir at the bottom of the sea. The heat and gas under the ground broke through and pushed out everything that was in the way.

6. 'Stones, ashes, and dust came flying up through the water, and then fell back into the water again. When all was quiet, they settled down at the bottom of the sea, and became mud.

7. 'All this happened many times, till there was a great deal of mud.

Then, little by little, the mud was covered up by other things.'

8. 'What sort of things?'

'Dead fish, perhaps, and sh.e.l.ls, and sand and mud that had been brought by rivers into the sea. These things lay on the top of the mud and weighed it down.

9. 'The heat under the bottom of the sea still kept up, and made the mud very hot, and baked it through. At last it gave a great push, and heaved the mud up above the water, so that it became dry land.

10. 'In other ways it was made harder and harder, until it was turned into rock. And now we call it slate. Here is a bit of your old broken slate. See if you can turn it into mud again!'

CHALK.