西方原版教材与经典读物•科学系列

章节摘录

版权页：   插图：   "Yes, it is," said Fred, "I will mold it into a little cup, just as teacher did this morning. "What was it that made the clay pliable?" "Water," said Norah. "What makes putty pliable?" "The linseed oil." "Quite right," said Fred. "Now we have got a newsubstance-gutta-percha, that is made pliable byheat." "And now," added Willie, "Norah knows why shemust not put her boots, with gutta-percha soles,near the fire. The soles would get soft with the heatof the fire, and break away" "Let us look," said Fred, "at our little cup. See, itis cold, and quite hard once more. It is not pliablenow. "Look again, while I fill the cup with water. Noneof the water runs through. Gutta-percha is water-proof." "Yes," said Will, "that is why it is so useful forboots. It keeps our feet dry." Lesson 20 A Piece of Salt "Fred, you might let me be teacher to-night," saidWillie. "I want to talk about salt." "All right, mate," said Fred, "and I'll go and askmother for a lump of salt." Fred was soon back with the things that werewanted. "Now, Norah," said Will, "I want you to put apiece of the salt in the water. That's right. Now stirthe water. "Where is the salt? Can you see it?" "No," said Norah, "I cannot see it, but I am sureI put it in the water." "Put another piece in and try again," said Will."Can you see the salt now?" "No, I cannot see it now," said Norah. "What hasbecome of it ? Has it melted, Willie?" "Ah," said Will, with a knowing smile, "I thoughtyou would ask that. Now just tell me what you saw,when I put the piece of wax in the spoon, and heldit over the fire."

前言

This series of Reading Books was published for the use of teachers and students in. It will be found useful, not only in those schools in which Elementary Science is taken as a class subject, but also for the purposes of an ordinary reader. Of this series of Science Readers, Books I, II, and m are adapted to pupils who are in their third and fourth years of school work. Both the reading and the subject matter of Books IV, V, and VI are suitable for Senior Grades.In the first lesson of the First Reader we are introduced to three children, who amuse themselves in this way over the favorite lesson of the day. They deal with each subject as it comes, in their own simple language, missing no point of importance, and quoting the words and advice of their teacher; and it is hoped that the young readers who follow them through these lessons will catch something of the enthusiasm and earnestness which characterize them as they advance step by step from very small beginnings to a real understanding of the elementary facts of natural science.At the end of each of the first three volumes will be found a short summary of the lesson. This is a helpful feature. The teacher who reads this carefully, then the reading lesson itself, will secure both the needful knowledge and valuable suggestions for a successful method of imparting it.All the lessons bearing on Physics should thus be prepared, but many of the others may be successfully used as reading, pure and simple, making them vivid to the children by showing them living illustrations. Many of these can be easily secured for the asking from wholesale grocery houses and manufacturing establishments, while others must be bought or collected by the teacher herself.Tea, the various stages in the preparation of the coffee berry and of cocoa, palm oil fruit, cocoanuts in their natural state, crude rubber, camphor, resin, turpentine, tar, pitch, cotton balls, crude wool, are some of the things illustrating these lessons which can be secured at small expense. When once obtained, they should be labeled and made a part of a permanent collection.L. L, W. WILSONPhiladelphia Normal School

内容概要

作者：（美国）文森特•默奇

书籍目录

《科学读本1》目录：

Water

Water-A Liquid

Solids

Liquids and Solids

The Cat

More about the Cat

Hard and Soft Bodies

Porous Bodies

The Dog

Dogs

A, Piece of Clay

Clay-Its Uses (Ⅰ)

Clay-Its Uses (Ⅱ)

The Cat's Big Cousins-The Lion

The Cat's Big Cousins-The Tiger

Wolves and Foxes

A Piece of Putty

Puffy-What if is

Gutta-Percha

A Piece oF Salt

The Sheep

Solt

The Pig

Rock-Salt-Table Salt

A Plant

Sugar

The Root of a Plant

Loaf Sugar

The Root and its Work

About Burning

The Stems oF Plants

Coal (Ⅰ)

Coal (Ⅱ)

Leaves

Coal-The Mine

The Mine and the Miners

More about Leaves

More about the Mine

Flowers

What we mean by Elastic

《科学读本2》目录：

Porous Bodies

Sponge-and its Uses

The Sponge

Filters

The Poor Man's Filter

Soluble

Soluble Substances

Starch

What Starch is

Starch for Food

Soluble and Insoluble

Soap

Corn

Kinds of Corn

Adlhesive

Cements

Wheat and Rice

Fusible

Maize

About Metals

Some More about Metals

Tron Ore

Iron

The Cow

Cast-Iron

Milk, Buffer, Cheese

Wrought Iron

The Horse

Steel

The Rabbif

Copper

The Rabbit at Home

Lead

The Monkey

Tin

Three Classes of Monkeys

Zinc

The Mole

Silver

Gold

《科学读本3》目录：

Water- Its Properties

Some of the Uses of Water

Birds and their Covering

A Feather

The Uses of Feathers

Water as a Solvent

Further Uses oF Water

Birds

Water in other Forms

Vapor in the Air

Birds and their Beaks

More about Beaks

Vapor-What Becomes of It

Clouds, Rain, Dew

Birds-Their Legs and Feet

Birds-More about Legs and Feet

Solid Water

Ice, Hail, and Snow

A Snake

How the Snake Feeds

Mercury

The Poisonous Snakes

The Non-Poisonous Snakes

Mercury-Its Preparation nnd Uses

The Frog

Air

More about the Frog

More about the Air

The Frog and the Toad compared

Gases

The Frog-Its Life History

Coal-Gas

A Fish

More about Coal-Gas

More about the Fish

Balloons

How The Fish Moves

Tar

The Fish and its Food

Paraffin Oil

An Insect

Carbonic Acid Gas

More about Insects

More about Carbonic Acid Gas

LiFe History of an Insect

Parts of a Plant

The Spider

The Vital Organs of the Plant

The Spider's Web

Parts of a Flower

More about the Flowers

The Flower and its Work

Seeds

Seedlings

The Seed-Leaves

The Single Seed-LeaF

The Bark

Kinds oF Bass

Flax

Linen-Making

……

《科学读本4》

《科学读本5》

《科学读本6》

编辑推荐

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作者简介

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