Junior ScienceB.H. Sanborn, 1921 - 533 σελίδες |
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Σελίδα x
... salt an element ? What is sulphur like ? What is phosphorus like ? What is a match ? - Ex- ercises . Water . - CHAPTER XIV Where is water found ? What is water like ? How does water boil ? How is ice made ? How is ice cream frozen ...
... salt an element ? What is sulphur like ? What is phosphorus like ? What is a match ? - Ex- ercises . Water . - CHAPTER XIV Where is water found ? What is water like ? How does water boil ? How is ice made ? How is ice cream frozen ...
Σελίδα 126
... salt brine or water ? 7. If dropped from the same height at the same time , which will strike the ground the sooner , a pound bag of feathers or a pound bag of iron nails ? 8. Why is it hard for a two - legged chair to stand ? Which is ...
... salt brine or water ? 7. If dropped from the same height at the same time , which will strike the ground the sooner , a pound bag of feathers or a pound bag of iron nails ? 8. Why is it hard for a two - legged chair to stand ? Which is ...
Σελίδα 127
... salt and sugar is their taste ; the color , odor , and density of a substance , whether it will dissolve or burn , and many other qualities are also properties of the substance . Tell all the properties you know of pine wood , soap ...
... salt and sugar is their taste ; the color , odor , and density of a substance , whether it will dissolve or burn , and many other qualities are also properties of the substance . Tell all the properties you know of pine wood , soap ...
Σελίδα 130
... salt is a compound , but when the two are powdered and rubbed together we get a mixture of these two compounds . When sugar and sulphur are rubbed together , we get a mixture of a com- pound with an element . When powdered iron and ...
... salt is a compound , but when the two are powdered and rubbed together we get a mixture of these two compounds . When sugar and sulphur are rubbed together , we get a mixture of a com- pound with an element . When powdered iron and ...
Σελίδα 134
... Salt an Element ? - All of us know something of salt , the substance we use in seasoning our food and in preserving certain foods , such as salted meats and fish . It is found in large amounts in sea water and in salt water ; it is also ...
... Salt an Element ? - All of us know something of salt , the substance we use in seasoning our food and in preserving certain foods , such as salted meats and fish . It is found in large amounts in sea water and in salt water ; it is also ...
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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.