Copper - Eliza Sobiech

5. The gas and aerosol envelope that extends from the ocean, land, and ice-covered surface of a planet outward into space.
6. A colourless, pungent gas composed of nitrogen and hydrogen.
11. Electrical ___ is a measure of a material's ability to conduct an electric current.
12. What country produced the most copper in 2016?
14. Chemical ___, any substance composed of identical molecules consisting of atoms of two or more chemical elements.
15. A metallic substance composed of two or more elements, as either a compound or a solution.

1. The process by which a metal is obtained, either as the element or as a simple compound, from its ore.
2. What's the name of a thin green protective coating that bulids up on copper over time?
3. The science of extracting metals from their ores and modifying the metals for use.
4. Where was copper first cast to shape in molds?
7. A colourless, odourless, tasteless gas essential to living organisms.
8. What is copper's physical state at 20ºC?
9. A naturally occurring homogeneous solid with a definite chemical composition and a highly ordered atomic arrangement; it is usually formed by inorganic processes.
10. By combining copper with which chemical element can we get brasses?
13. Capacity of a material to deform permanently (e.g., stretch, bend, or spread) in response to stress.