Junior ScienceB.H. Sanborn, 1921 - 533 σελίδες |
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Σελίδα xvi
... ? What are the intestines like ? What happens to food in the intestines ? - What should our diet be ? Is alcohol a food ? -- Exercises and sum- mary . PAGE 422 449 463 How Blood is Circulated • CHAPTER XXXVII What is the xvi CONTENTS.
... ? What are the intestines like ? What happens to food in the intestines ? - What should our diet be ? Is alcohol a food ? -- Exercises and sum- mary . PAGE 422 449 463 How Blood is Circulated • CHAPTER XXXVII What is the xvi CONTENTS.
Σελίδα xvii
... blood ? - - What are red corpuscles for ? What is the work of white corpuscles ? - How is bleeding stopped ? - How does the heart pump the blood ? - How do arteries differ from veins ? Does an artery bleed like a vein ? What are ...
... blood ? - - What are red corpuscles for ? What is the work of white corpuscles ? - How is bleeding stopped ? - How does the heart pump the blood ? - How do arteries differ from veins ? Does an artery bleed like a vein ? What are ...
Σελίδα 25
... blood in our bodies is about 17 pounds to the square inch ; hence there is danger of hemorrhage , or bursting of the blood vessels , when the atmosphere's pressure suddenly becomes too small . So it happens that many persons have ...
... blood in our bodies is about 17 pounds to the square inch ; hence there is danger of hemorrhage , or bursting of the blood vessels , when the atmosphere's pressure suddenly becomes too small . So it happens that many persons have ...
Σελίδα 53
... blood vessels ; it is then carried by the blood to all parts of the body . The whole process by which oxygen gets to the cells of the body is called respiration . 66 A grown man takes into his lungs about 350 cubic feet of air in a day ...
... blood vessels ; it is then carried by the blood to all parts of the body . The whole process by which oxygen gets to the cells of the body is called respiration . 66 A grown man takes into his lungs about 350 cubic feet of air in a day ...
Σελίδα 73
... blood . The blood , by circulating through the body , makes the temperature of the body nearly the same everywhere . Does clothing make us warm or cool ? You will see that when you put on clothing in a cold room , the cloth- But it ...
... blood . The blood , by circulating through the body , makes the temperature of the body nearly the same everywhere . Does clothing make us warm or cool ? You will see that when you put on clothing in a cold room , the cloth- But it ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
acid ammonia animals bacteria becomes blood body boiling bones bottle breathing bulb burning called candle carbon dioxide carry cause cells cerebrum changed cloth coal cold color cool copper covered digestive dish dry cell earth electric current epidermis evaporate feet fire flame force give glass grow heat hydrochloric acid hydrogen inside iron kerosene kerosene lamp lamp layers learned light rays limewater liquid lungs machine magnet manganese dioxide material melted metal milk moon mouth move muscles needle nerve nitrogen nonconductor object oxide oxygen pass phosphorus piece pipes plants pole potassium chlorate pounds pressure produce pull pump push rock rubbed sal ammoniac salt seeds skin soil solution starch steam stomata stove substances sugar sulphur sunlight surface temperature tissue trees tube vibrations warm weather weight wind wire wood yeast zinc
Δημοφιλή αποσπάσματα
Σελίδα 509 - 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 402 - THIS is the forest primeval. The murmuring pines and the hemlocks, Bearded with moss, and in garments green, indistinct in the twilight, Stand like Druids of old, with voices sad and prophetic, Stand like harpers hoar, with beards that rest on their bosoms...
Σελίδα 509 - 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 509 - Area. 100 square millimeters (sq. mm.) =1 sq. centimeter (sq. cm.). 100 square centimeters = 1 sq. decimeter (sq. dm.). 100 square decimeters =1 sq. meter (sq. m.). 3. Cubic Measure, or Volume. The unit of volume is the liter, which is 1 cu. dm., or 1,000 cc 1,000 cubic millimeters (cu. mm.) = 1 cubic centimeter (cc). 1,000 cubic centimeters =1 cubic decimeter (cu. dm.). 1 cubic decimeter = 1 liter (1.). 10 liters =1 dekaliter (dl.). 10 dekaliters =1 hectoliter (hl.). 10 hectoliters = 1 kiloliter...
Σελίδα 105 - The known principal planets, in order of their distance from the Sun are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
Σελίδα 339 - Levers are divided into three classes: in the first class, the fulcrum ' is between the power and the weight ; in the second class, the fulcrum is...
Σελίδα 86 - The wind arrows show the wind to be moving in a direction opposite to the movement of the hands of a watch (counterclockwise) when it is laid, face up, on the map.
Σελίδα 243 - ... north pole of one magnet will attract the south pole of another, and the south pole of one will attract the north of another ; but the north...
Σελίδα 53 - The oxygen is carried by the blood to all parts of the body...
Σελίδα 331 - In the second class of levers th'e fulcrum is at one end and the power at the other, with the weight between them.