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Elementary Science Lessons Volume 4; Being a Systematic Course of Practical Object Lessons Illustrated by Simple Experiments (Paperback) Loot Price: R225
Discovery Miles 2 250
Elementary Science Lessons Volume 4; Being a Systematic Course of Practical Object Lessons Illustrated by Simple Experiments...

Elementary Science Lessons Volume 4; Being a Systematic Course of Practical Object Lessons Illustrated by Simple Experiments (Paperback)

W. Hewitt

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Loot Price R225 Discovery Miles 2 250

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1892 Excerpt: ... LESSON XXVII. A PINT MEASURE. OBJECTS REQUIRED--Tumbler of water; jug of water; basin; pint and half-pint measures; empty bottle (square); tawdust; oblong wooden block; rule; (hollow cardboard cubes, with sides of 1 inch, 2 inches, dc.); funnel. ANALYSIS OF LESSON. Solids measured with rule; why not liquids? Ex.--Compare water in tumbler and wood-block. Capacity of regular vessel might be measured. Ex.--Measure with rule, and calculate volume of square bottle. Volume of liquids measured by vessels of known volume (in cubic inches); why not also solids? Ex.--Show hollow cubes holding 1, 4, 9 cubic inches. Standard measure of capacity is gallon (holding exactly 10 lbs. of water). Divisions and multiples of gallon. Ex.--Show pint and half-pint measures. Use of such measures; note liquid adapts itself to vessel. Ex.--Measure pint and half-pint of water. Children measure capacity of bottle, basin, jug, dc. What substances measured with these measures? Certain small solids may be thus measured--peas, &c. Ex.--Fill measure with sawdust. Spaces exist between the small solids; effect of pressure. Ex.--Press down sawdust in measure. Means of ascertaining total volume of such spaces. Gallon, pint, &o. measure volume or capacity, not weight. NOTES. Subject of Lesson.--In the last lesson the method of determining the volume of certain regular solids by measurement with a rule was studied. We have now to consider another and more convenient method of determining the volume of liquids and certain small solids by the use of measures of capacity. This will also serve to illustrate again the difference between solids and liquids. Show the children a tumbler full of water, and question them to see if they know how quantities of water or other liquids are usually expressed, vi...

General

Imprint: General Books LLC
Country of origin: United States
Release date: February 2012
First published: February 2012
Authors: W. Hewitt
Dimensions: 246 x 189 x 2mm (L x W x T)
Format: Paperback - Trade
Pages: 38
ISBN-13: 978-1-150-66101-3
Categories: Books
LSN: 1-150-66101-1
Barcode: 9781150661013

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