Substances

Examples

• Although carbon dioxide is very injurious to health, both of the substances of which it is composed are necessary to life. Bertha M. Clark. General Science.
• For example, if the sun's rays fall upon silver chloride, a chemical action immediately begins, and as a result we have two separate substances, chlorine and silver. Bertha M. Clark. General Science.
• The coloring substances are pulverized and the mixture ground. William K. David. Secrets of Wise Men, Chemists and Great Physicians.
• Substances which, like an air gap, interfere with the flow of electricity are called non-conductors, or, more commonly, insulators. Bertha M. Clark. General Science.
• Can you give any uses of these substances? Bertha M. Clark. General Science.
• They insinuated themselves into the substances about them, and the impediments to their progress yielded at their touch. Mary Shelley. The Last Man.
• Commercial soaps are made from a great variety of substances, such as tallow, lard, castor oil, coconut oil, olive oil, etc. Bertha M. Clark. General Science.
• What is wanted is a strong, steady current, and our choice of material is limited to the substances which will give this result. Bertha M. Clark. General Science.
• Thus by the prism and the blowpipe were the same substances found in the sun, the stars, and the earth. William Henry Doolittle. Inventions in the Century.
• But to avoid taxation it must be rendered unfit for drinking by the addition of such unpalatable substances as wood alcohol, pyridin, benzola, sulphuric ether or animal oil. Various. The Wonder Book of Knowledge.
• The hands may gather germs from any substances or objects with which they come in contact; hence the hands should be washed with soap and water, and especially before eating. Bertha M. Clark. General Science.
• While soap is, generally speaking, the best cleansing agent, there are occasions when other substances can be used to better advantage. Bertha M. Clark. General Science.
• Heat, in general, causes substances to expand or become less dense. Bertha M. Clark. General Science.
• In the year 1600, Gilbert, an English physician, enlarged considerably the catalogue of substances which have the property of attracting light bodies. Benjamin Franklin. Memoirs of Benjamin Franklin.
• Substances which, like the earth, the human body, and all other moist objects, conduct electricity are conductors. Bertha M. Clark. General Science.
• The best kind of gas made from mineral substances is produced by the distillation of a bituminous shale, called Boghead coal, which was discovered a few years since in Scotland. Frederick C. Bakewell. Great Facts.
• They discovered many new substances, such as alcohol,[334] potash, nitrate of silver, corrosive sublimate, and nitric and sulphuric acid. H. G. Wells. The Outline of History_Being a Plain History of Life and Mankind.
• But nowhere, except in the air around us, do we find oxygen free and uncombined with other substances. Bertha M. Clark. General Science.
• Many substances besides air stop the flow of electricity. Bertha M. Clark. General Science.
• In 1828 Wohler produced urea from inorganic substances, which was the first example of the synthetic production of organic compounds, and it was for many years the only product so formed. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
• Iron, for example, burns when it rusts, because it slowly combines with the oxygen of the air and is transformed into new substances. Bertha M. Clark. General Science.
• In filtration, the water is forced through porcelain or other porous substances which allow the passage of water, but which hold back the minute foreign particles suspended in the water. Bertha M. Clark. General Science.
• Musical Sounds from Minerals and Other Substances. William Henry Doolittle. Inventions in the Century.
• What is to be learned from this rapid sketch, of the discovery of the radioactive substances, concerning the nature and value of scientific hypothesis? Walter Libby. An Introduction to the History of Science.
• The principle on which Lithography depends is the different chemical affinities of water for oily and for earthy substances, which cause it to run off from the one and adhere to the other. Frederick C. Bakewell. Great Facts.
• Of those substances, straw has been most successfully applied, and straw paper--excellent to write upon, though not bright in colour--is now made at very low prices. Frederick C. Bakewell. Great Facts.
• Solutions of the compound may be applied to the preservation of all organic substances, either animal or vegetable. William K. David. Secrets of Wise Men, Chemists and Great Physicians.
• The substances which make water hard are calcium and magnesium salts. Bertha M. Clark. General Science.
• Late improvements in the manufacture of inks are due to the discovery and cheapening of substances which can be used in preparing them. William K. David. Secrets of Wise Men, Chemists and Great Physicians.
• The artist and the adaptor have still hardly begun to work with the endless variety of substances now at their disposal. H. G. Wells. The Outline of History_Being a Plain History of Life and Mankind.

Checked by Eugene