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 7
And their direction changes as they go from one kind of rock to another. Scientists
can find the boundary of the crust by the way seismic waves suddenly change
direction at a certain depth. The point where they change direction is called the ...
And their direction changes as they go from one kind of rock to another. Scientists
can find the boundary of the crust by the way seismic waves suddenly change
direction at a certain depth. The point where they change direction is called the ...
Side 88
Every kind of bird lays its own particular kind of egg. This egg develops and
grows into a bird of the same kind as the one that laid the egg. Small birds, such
as the sparrow, lay fairly small eggs. Large birds, such as the ostrich, lay very
large ...
Every kind of bird lays its own particular kind of egg. This egg develops and
grows into a bird of the same kind as the one that laid the egg. Small birds, such
as the sparrow, lay fairly small eggs. Large birds, such as the ostrich, lay very
large ...
Side 137
One kind is alternating current, or AC. Alternating current continually ... Most
electric motors can run on only one or the other kind of current. If they are
plugged into the wrong kind of current, they will burn out. Some motors, however,
are ...
One kind is alternating current, or AC. Alternating current continually ... Most
electric motors can run on only one or the other kind of current. If they are
plugged into the wrong kind of current, they will burn out. Some motors, however,
are ...
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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