Lessons On Objects, Graduated Series; Designed for Children Between the Ages of Six And Fourteen Years;
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In our eReader you can find the full English version of the book. Read Lessons On Objects, Graduated Series; Designed for Children Between the Ages of Six And Fourteen Years; Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Lessons On Objects, Graduated Series; Designed for Children Between the Ages of Six And Fourteen Years;
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To quickly assess the difficulty of the text, read a short excerpt:
Pupils. — ^The gum, contrary to the sealing wax, dis- solves in the water, but not in the spirit ; it is also soluble and insoluble.
Teacher. — It is so ; but when no particular solvent is named, it is always understood to be water ; hence, in or- dinary language, gum is said to be soluble ; sealing wax insoluble; the solvent, water, being understood. India rubber is an example of a solid, insoluble in all ordinary liquids, but soluble in coal tar, naphtha; the solution thus obtained is used fo...r making waterproof (Macintosh) cloth- ing, by employing it to cement together two thin layers of cloth.
The pupils then should be required to mention all the 198 FOUETH STEP. LESSON XXXIII.
new terms they have learnt, or any like them ; as soluble, insoluble, solve, solvent, solution, dissolve, dissolving, solu- bility, insolubility, saturated.
Teacher. — -Do you observe a resemblance in these words ?
Pupils, — Yes ; they all, except saturated, have solve or solu in them.
Teacher. — ^The meaning of that root, as it is called (for it is like the root of a plant, the part from which the other parts spring), is to loose ; it comes from a Latin word solvo^ to loose — the v being changed into u ; the word sol- uble then means, being able to be loosed, or to have parti- cles separated by the action of a liquid.
What to read after Lessons On Objects, Graduated Series; Designed for Children Between the Ages of Six And Fourteen Years;?
You can find similar books in the "Read Also" column, or choose other free books by Elizabeth Mayo to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Pupils. — ^The gum, contrary to the sealing wax, dis- solves in the water, but not in the spirit ; it is also soluble and insoluble.
Teacher. — It is so ; but when no particular solvent is named, it is always understood to be water ; hence, in or- dinary language, gum is said to be soluble ; sealing wax insoluble; the solvent, water, being understood. India rubber is an example of a solid, insoluble in all ordinary liquids, but soluble in coal tar, naphtha; the solution thus obtained is used fo...r making waterproof (Macintosh) cloth- ing, by employing it to cement together two thin layers of cloth.
The pupils then should be required to mention all the 198 FOUETH STEP. LESSON XXXIII.
new terms they have learnt, or any like them ; as soluble, insoluble, solve, solvent, solution, dissolve, dissolving, solu- bility, insolubility, saturated.
Teacher. — -Do you observe a resemblance in these words ?
Pupils, — Yes ; they all, except saturated, have solve or solu in them.
Teacher. — ^The meaning of that root, as it is called (for it is like the root of a plant, the part from which the other parts spring), is to loose ; it comes from a Latin word solvo^ to loose — the v being changed into u ; the word sol- uble then means, being able to be loosed, or to have parti- cles separated by the action of a liquid.
What to read after Lessons On Objects, Graduated Series; Designed for Children Between the Ages of Six And Fourteen Years;?
You can find similar books in the "Read Also" column, or choose other free books by Elizabeth Mayo to read onlineMoreLess
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