A First Year Course in General ScienceCharles E. Merrill Company, 1915 - 315 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
A First Year Course in General Science (Classic Reprint) Clara a Pease Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
A First Year Course in General Science (Classic Reprint) Clara a Pease Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
acid ammonia bean body bottle Bunsen burner burning called carbon dioxide cause cells chemical color combustion compounds contains contour lines copper cubic centimeter cubic foot cylinder degrees density direction dissolved earth eggs electricity elements elevation energy evaporating dish EXERCISE feet feldspar fish force forest gases glacier glass grams gravity heat horizontal hydrogen inch iodine iron LABORATORY MANUAL lakes land layers leaf leaves light limestone limewater liquid living lower magnet material matter melting mercury meridian metal miles minerals moon motion mountain move muscle nerve North Star ocean organs oxidation oxygen paper passes piston plants and animals position pressure properties proteid protoplasm pump pupil region result rises river rock roots salt seed side soil solar eclipse solid specific gravity starch stem stone stream substance surface temperature Textbook thermometer tube United vapor warm weight wind wire
Δημοφιλή αποσπάσματα
Σελίδα 301 - And Nature, the old nurse, took The child upon her knee, Saying : " Here is a story-book Thy Father has written for thee." " Come, wander with me," she said, " Into regions yet untrod ; And read what is still unread In the manuscripts of God." And he wandered away and away With Nature, the dear old nurse. Who sang to him night and day The rhymes of the universe. And whenever the way seemed long, Or his heart began to fail, She would sing a more wonderful song, Or tell a more marvellous tale.
Σελίδα 16 - The pair of stars which form the upper side of the dipper, or that farthest from the handle, are called the pointers, because a line drawn through them passes very near the pole star.
Σελίδα 78 - More heat is required to raise the temperature of a pound of water one degree...
Σελίδα 47 - A compound is a substance made up of two or more elements, chemically united, in definite proportions.
Σελίδα 73 - The freezing point of water is marked 0, and the boiling point at sea level 100, and the distance between is divided into 10X) parts or degrees.
Σελίδα 66 - specific gravity " is used to denote the ratio between the weight of a body and the weight of an equal volume of water.
Σελίδα 211 - Under various circumstances, then, a forest may yield its best return in protection, in wood, grass, or other forest products, in money, or in interest on the capital it represents. But whichever of these ways of using the forest may be chosen in any given case, the fundamental idea in forestry is...
Σελίδα 56 - We may add to these principles a definition of a force, which is equally and absolutely complete : force is that which produces, or tends to produce, motion, or change of motion, in bodies.
Σελίδα 50 - ... 10 mills make 1 cent. 10 cents make 1 dime. 10 dimes or 100 cents make 1 dollar.
Σελίδα 97 - ... mercury ; on removing his thumb, the mercury, instead of remaining in the tube, and thus satisfying nature's abhorrence of a vacuum, fell, as he expected, and after a few oscillations, came to rest at a height of about thirty inches above the level of the mercury in the basin. The correctness of his induction having been thus verified, Torricelli at once concluded that it must be the pressure of the air which sustained both the water in the pump and the mercury in the tube.