Elements of Biology: A Practical Text-book Correlating Botany, Zoology, and Human PhysiologyAmerican Book Company, 1907 - 445 páginas |
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Página 15
... Oxygen .. Oxygen may be easily prepared. 15 II INTRODUCTORY EXPERIMENTS IN CHEMISTRY AND PHYSICS.
... Oxygen .. Oxygen may be easily prepared. 15 II INTRODUCTORY EXPERIMENTS IN CHEMISTRY AND PHYSICS.
Página 16
... oxygen pass off from the two chemicals in the test tube ? How could you determine the presence of oxygen in a substance ? there oxygen in the air ? How do you know ? Preparing oxygen . Is Properties of Oxygen . - The physical proper- ties ...
... oxygen pass off from the two chemicals in the test tube ? How could you determine the presence of oxygen in a substance ? there oxygen in the air ? How do you know ? Preparing oxygen . Is Properties of Oxygen . - The physical proper- ties ...
Página 17
... oxygen . Experiment . - Oxidation may take place with very little heat present , although heat is always a result of oxidation . Place an iron nail in a bottle of water , and cork and seal the bottle . Place another nail in a saucer in ...
... oxygen . Experiment . - Oxidation may take place with very little heat present , although heat is always a result of oxidation . Place an iron nail in a bottle of water , and cork and seal the bottle . Place another nail in a saucer in ...
Página 18
... oxygen of the air in the jar . Thus , by the uniting of the two chemical elements , a chemical compound has been formed . The presence of carbon dioxide is known by the fact that it puts out a flame and that it turns limewater milky ...
... oxygen of the air in the jar . Thus , by the uniting of the two chemical elements , a chemical compound has been formed . The presence of carbon dioxide is known by the fact that it puts out a flame and that it turns limewater milky ...
Página 19
... oxygen of the air , this hav- ing been used up by the oxidation of the phosphorus . The remaining space at the completion of the experiment is occupied by the nitrogen , which makes the remaining four fifths of the atmosphere . The ...
... oxygen of the air , this hav- ing been used up by the oxidation of the phosphorus . The remaining space at the completion of the experiment is occupied by the nitrogen , which makes the remaining four fifths of the atmosphere . The ...
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adapted alcohol American Book Company amount animal arteries bacteria bean beetle birds blood vessels bone Botany breathing called carbon dioxide cause cells cerebrum color colorless corpuscles containing corn corpuscles cotyledons covered crayfish developed dicotyledonous digestive eggs endosperm example experiment fibers fish flower fluid frog fruit germinate gills glands grain green grow growth heart heat Hunter and Valentine insects intestine kidney known laboratory large number larvæ layer leaf leaves legs living lungs Manual means membrane microscope mollusks monocotyledon mouth muscles muscular nerve nervous system nitrogen Notice organs outer ovary oxidation oxygen parasitic pass Physiology pistil pollen proteid protoplasm root hairs seedlings seeds seen shell side skeleton skin soil species sporangium spores stamens starch stem stomach stomata structure substance sugar surface teeth temperature tiny tion tissues tree veins vertebral vertebral column walls wings worm Zoology