Page 19 - Curriculum Visions Dynamic Book

facing: sheets of stone cut to form the decorative outer surface of a building. It is a form of cladding. On modern buildings it is also sometimes called siding.
weather: a term used by Earth scientists and derived from “weathering.” It means to react with water and gases of the environment.
 Vezelay Abbey, France. Notice
how rainwater containing carbon dioxide has begun to dissolve the limestone. The effect is most noticeable on the corners of each block, giving each of the blocks
a more rounded appearance.
 The Radcliffe Camera, Oxford University, England, a building made from a cream- coloured limestone.
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