Have you ever seen a green steeple, or a green roof on a building? Did you know that they started out being the same color as a shiny new copper square? Some steeples and roofs have a layer of copper on them, just like a copper square does. A copper square and a roof can be made of similar materials, but they do not appear the same color.

Why do you think steeples and roofs might appear green, but a copper square does not?

Social Studies
Views: 0 Asked: 04-22 05:54:54
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