The First Year of ScienceSanborn, 1914 - 484 σελίδες |
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Σελίδα v
... as well as for that general knowledge of common things which every person ought to carry away from a High School course . In the latter half of the text are chapters on " Water , Heat , Air , and Light in the House ,
... as well as for that general knowledge of common things which every person ought to carry away from a High School course . In the latter half of the text are chapters on " Water , Heat , Air , and Light in the House ,
Σελίδα xi
... Carried.- Sound Waves.- Echoes.- Noise and Tone.- The Telephone.— Summary . Exercises . Simple Machines CHAPTER X. ―― 174 Need of Machines.- Law of Machines.- The Lever.- Classes of Levers . Exercises.- Pulleys.- Wheel and Axle ...
... Carried.- Sound Waves.- Echoes.- Noise and Tone.- The Telephone.— Summary . Exercises . Simple Machines CHAPTER X. ―― 174 Need of Machines.- Law of Machines.- The Lever.- Classes of Levers . Exercises.- Pulleys.- Wheel and Axle ...
Σελίδα 18
... carried out in the latter part of the 18th century this attraction was made visible . A large ball of lead and a small one of copper were suspended side by side , with the result that the copper ball was drawn aside from a vertical ...
... carried out in the latter part of the 18th century this attraction was made visible . A large ball of lead and a small one of copper were suspended side by side , with the result that the copper ball was drawn aside from a vertical ...
Σελίδα 37
... turn over after the part under water has melted for a time . Why ? 10. How do you lean your body when you carry a pail of water ? When you run forward ? When you climb a hill ? Why ? CHAPTER III AIR AND FIRE 38. The Atmosphere . As.
... turn over after the part under water has melted for a time . Why ? 10. How do you lean your body when you carry a pail of water ? When you run forward ? When you climb a hill ? Why ? CHAPTER III AIR AND FIRE 38. The Atmosphere . As.
Σελίδα 41
... carry it up a mountain or up in a balloon . The mercury column falls more and more , showing that the density and the ... carried down into a deep mine , the mercury column rises , because the density and the pressure of the air are ...
... carry it up a mountain or up in a balloon . The mercury column falls more and more , showing that the density and the ... carried down into a deep mine , the mercury column rises , because the density and the pressure of the air are ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
acid alcohol ammonia animals bacteria becomes blood body boiling bones bottle burning calcium called capillary carbon dioxide carpels carried cells center of mass cerebrum changed chloride chlorophyll clothing coal cold color compounds consists contains cooled copper cord corpuscles cotyledons cubic dermis digestion diphtheria disease disinfectants dissolved earth electric epidermis esophagus fibers flame force freezing gases germs give glands glass gram heat hence hydrochloric acid hydrogen inches intestine iron juice kerosene layer light lime limestone liquid lungs magnet material melted mercury mercury oxide metal milk molecules motion mouth muscles nerve nitrogen object organs oxide oxygen pharynx phosphorus plants potassium pressure produce proteids rays removed rock salt seed skin small intestine soap sodium soil solid soluble solution steam stem stomach stove substances sugar sulphur sulphur dioxide surface temperature tissue tube vapor vessel weather weight wind wire wood
Δημοφιλή αποσπάσματα
Σελίδα 459 - Measures of Length 10 millimeters (mm) =1 centimeter cm 10 centimeters =1 decimeter dm 10 decimeters =1 meter m 10 meters =1 dekameter Dm 10 dekameters =1 hektometer Hm 10 hektometers =1 kilometer Km...
Σελίδα 459 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 459 - ... decimeter =1 liter (1.) 10 liters =1 dekaliter (dl.). 10 dekaliters =1 hectoliter (hi.). 10 hectoliters =1 kiloliter (kl.). 4. Weight. The gram is the weight of 1 cc water at 4° C.
Σελίδα 40 - ... hung up at one end, which when long enough will at last break with its own weight. Torricelli, however, in 1643, made an experiment which gave the true explanation of the pump-maker's difficulty. Filling with mercury a glass tube three feet in length, and closed at one end but open at the other ; he closed the open end with his finger, and inverted the tube in a basin filled with mercury. The mercury then sank in the tube to a given level, whilst above this level there was an empty space, which...
Σελίδα 471 - The major planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.
Σελίδα 396 - The nervous system is divided into two major categories: the central nervous system, consisting of the brain and spinal cord, and the peripheral nervous system, which is composed of all nerves that extend outward from the brain or spinal cord (Fig.
Σελίδα 467 - The Handbook of Chemistry and Physics, published by the Chemical Rubber Company, Cleveland, Ohio, contains tables of various properties of the elements.
Σελίδα 9 - LINEAR MEASURE 10 millimeters (mm.) = 1 centimeter 10 centimeters (cm.) — 1 decimeter 10 decimeters...
Σελίδα 60 - Fig. 25. noticeably for an increase in temperature and the amount of its expansion can be very readily determined. The ordinary thermometer consists of a glass tube of uniform bore which has a bulb at one end. The bulb and part of the tube are filled with mercury. The remaining part of the tube is empty, so that the mercury can freely rise or fall. When the temperature rises, the mercury expands and rises, when the temperature falls, the mercury contracts and sinks.
Σελίδα 11 - Tho symbol (Ib.) for it is equally general, and is derived from the Latin word libra. The old English pound, which is said to have been the standard of weight from the time of William the conqueror till that of Henry VII., was derived from the weight of 7,680 grains of wheat, all taken from the middle of the ear, and well dried.