The New book of knowledge, Volum 11An illustrated encyclopedia containing over 9,000 articles on history, literature, art and music, geography, myths and legends, mathematics, science, hobbies, holidays and festivals, games, sports, crafts, medicine, law, government, industry, politics, and other topics. |
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Side 43
The branch of science that deals with the ways in which living things are related
to one another and to their environment is called ecology. Scientists who study
these relationships are called ecologists. The word "ecology" comes from Greek ...
The branch of science that deals with the ways in which living things are related
to one another and to their environment is called ecology. Scientists who study
these relationships are called ecologists. The word "ecology" comes from Greek ...
Side 123
Today we know that lightning is a powerful discharge of energy — the form of
energy called electricity. In modern times we have learned to produce electricity
and put it to work. As a result, electricity has become an important part of our daily
...
Today we know that lightning is a powerful discharge of energy — the form of
energy called electricity. In modern times we have learned to produce electricity
and put it to work. As a result, electricity has become an important part of our daily
...
Side 126
The materials that conduct little or no electricity are called insulators. Amber,
glass, plastic, rubber, and dry wood are examples of insulators. A conductor will
hold a charge if it is separated from its surroundings by an insulator. Separation
of ...
The materials that conduct little or no electricity are called insulators. Amber,
glass, plastic, rubber, and dry wood are examples of insulators. A conductor will
hold a charge if it is separated from its surroundings by an insulator. Separation
of ...
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19th century actinide series Africa Age of Exploration Akhenaten alternating current American ancient animals became began British building built called canal century changes charge chemical church cities coast coil crust developed earth earthquake East eclipse Ecuador eels eggs Egypt Eisenhower electric current electric motor electronic music electrons elements elephants elevator energy engine England English Equatorial Guinea ERBIUM Eskimos Ethiopia Europe European explosives fish flow France Greek heat important Indian Indian elephant industry iron islands kilometers kind king land language lanthanide learned light live magnet ment metal meters modern mountains move nations North ocean oxygen painted Parliament plants plate poems poet poles pollution produce promethium radio River rock Roman schools scientists Soviet Spain steam surface tion United uosipg voltage vote waves William wire wrote