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Chemicals/Materials/Quiz

< Chemicals | Materials

Materials is an effort, in a lecture format, to describe the chemicals of materials.

Synthetic diamonds of various colors grown by the high-pressure high-temperature technique. Credit: Materialscientist.

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Quiz

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1 Yes or No, Materials are the matter from which a thing is or can be made.

Yes
No

2 Efforts to magnify objects in the sky probably began with the use of crystal

.

3 Yes or No, Lens-shaped crystals have long been known from Bronze Age contexts.

Yes
No

4 True or False, The difference between geochemical reactions and astrochemical reactions is that one is restricted to Earth.

TRUE
FALSE

5 Complete the text:

A short or

realization of a certain

or idea to

its feasibility is called a proof of

.

6 Yes or No, The dominant group of Al–Si foundry alloys contain between 5 and 25 wt.% Si, with Mg, Ni and Cu additions.

Yes
No

7 True or False, Any nonmetallic solid that remains hard when heated is called a ceramic.

TRUE
FALSE

8 Complete the text:

Among a variety of tool making

, sintered carbides are still a

in view of

technologies.

9 Yes or No, A solid composed of an array of atoms or molecules possessing long-range order and arranged in a pattern which is periodic in three dimensions is called a crystal.

Yes
No

10 True or False, For as-deposited diamond, C---H is the dominant group on the hydrogen-terminated surfaces, and it has been found that ---OH and C=O groups [24] are in fact generated on oxidized diamond surfaces.

TRUE
FALSE

11 Yes or No, Let the symbol KREEP be an acronym for potassium (the chemical symbol is K), rare earth element (REE), and phosphorus (chemical symbol is P).

Yes
No


Hypotheses

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Main resource: Hypotheses
  1. There is at least one chemical unique to Earth.

See also

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{{Geology resources}}

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