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Soft and hard
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Soft and hard
-- Soft & hard
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11 Total copies, 11 Copies are in, 0 Copies are out.
Provides a simple explanation of what makes different materials soft or hard and how they are used for different jobs because of their hardness or softness.
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Authors
Royston, Angela
Subjects
Hardness.
Language
English
Series
Heinemann first library My world of science
Dimensions
23 cm.