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. 1919 Excerpt: ...FREEZES? Materials. A short test tube or a small vial without a constricted neck; a two-holed rubber stopper to fit the test tube or vial; a thermometer; a glass tube about one foot in length and fitting tightly one of the holes in the stopper; ice or snow; salt. Directions. Fill the test tube or vial with water and ...
Read More
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. 1919 Excerpt: ...FREEZES? Materials. A short test tube or a small vial without a constricted neck; a two-holed rubber stopper to fit the test tube or vial; a thermometer; a glass tube about one foot in length and fitting tightly one of the holes in the stopper; ice or snow; salt. Directions. Fill the test tube or vial with water and close it with a two-holed rubber stopper in which are a glass tube and a thermometer. The tube should not extend below the lower surface of the stopper. Push the stopper down until the glass tube is about half full of water. Fasten on the back of the glass tube a paper centimeter scale cut from cross-section paper. Set the test tube or vial in a beaker or cup and surround it with a freezing mixture made by adding ice or snow to a heavy brine solution. Watch the tube from the beginning, and record the changes in height of water in the tube. Note the height of the column for each degree of change of temperature, and record each measurement with the reading of the thermometer at the same time. After you have recorded your observations, try to make conclusions, with proof, on the following points: What changes in volume take place when water freezes? At what temperature does a given amount of water occupy the least volume? When is water heaviest per cubic inch? When lightest? Compare your results with results known to be correct, which will be given by the teacher or in the textbook. Additional problems. Why does ice float? Why do water pipes burst when the water within freezes? WHAT HAPPENS WHEN WATER BOILS, AND AT WHAT TEMPERATURE DOES THIS TAKE PLACE? Materials. A flask; a two-holed rubber stopper to fit; a thermometer; a glass tube; a ring stand with clamps (or other support). Directions. Set up an apparatus as shown in the diagram. The flask sh...
Read Less
Add this copy of A Laboratory Manual for Work in General Science to cart. $20.00, good condition, Sold by Top Notch Books rated 5.0 out of 5 stars, ships from Tolar, TX, UNITED STATES, published 1919 by Ginn and Company.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Good. No Jacket. 4to-over 9¾"-12" tall. 139 pp. Gray cloth boards are rubbed on edges. Prior owner names feb. Pages are lightly tanning in margins, text has no markings, binding is sound.