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ChildCraft Science at work
by World Book
Description:
A) All about you:
What you are made of and why you are different from everyone else.
B) Tools and machine at work:
How we use simple tools to make machine.
C) Making use of metal:
How we get metals out of the ground and some of the ways we use it.
D) Raw materials:
Timber, clay, glass and plastic- just some materials we use to make evryday object.
E) Machines un the home.:
How science helps with household jobs.
F) On the move:
The machines that takes us wherever we want to travel – our land, sea and air.
G) Words, sounds, pictures and signals:
We receive millions of words, sounds and pictures every day – on paper, along wires and through the air.
H) The world of engineering:
Building our mordern world.
I) Source of power:
How we make the power that runs our machine.
J) Processec materials:
Food, clothes and even water have often been through long processes before we see them.
K) Inventions and the future:
Many inventions have changed the way we live- what will the future hold?
About The Author
The World Book Encyclopedia is an encyclopedia published in the United States. The encyclopedia was designed to cover major areas of knowledge uniformly, but it shows particular strength in scientific, technical, and medical subjects. It is based in Chicago, Illinois. The first edition (1917) contained eight volumes. New editions have since appeared every year except 1920, 1924, and 1932, with major revisions in 1929 (13 volumes), 1947 (19 volumes), 1960 (20 volumes), 1971 (22 volumes), and 1988 (new typeface and page design, and some 10,000 new editorial features). World Book also publishes children’s non-fiction and picture books under the Bright Connections Media imprint, and educational development and supplemental instructional resources through Incentive Publications by World Book.
The 1917 edition was published by the Hanson-Roach-Fowler Company, but within two years, World Book became the property of W.F. Quarrie & Company. In 1945, the World Book became the property of Field Enterprises. In 1978, World Book was purchased by Scott Fetzer Company, which in turn has been a subsidiary of Berkshire Hathaway since 1985.
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