Wood and Paper Flashcards by Jalaysia Bell | Brainscape

Q

What is wood?

A

The secondary xylem

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Q

Wood properties are determined by its…

A

structure

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Q

Who is the largest producer of lumber

A

United states

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Q

Who is the largest exporter of lumber?

A

Canada

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Q

What are Hardwoods?

A

Angiosperms that have vessels and fibers

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Q

What are soft woods?

A

Gymnosperms with only tracheas

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Q

What is the most popular hardwood in the us?

A

red oak

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Q

What is black cherry used for?

A

Furniture

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Q

What is sugar maple used for?

A

flooring

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Q

What is Douglas fir used for?

A

Lumber

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Q

T/F: Teak is very resistant to decay

A

True

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Q

What is ebony?

A

Dense, heavy wood that can be difficult to work with

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Q

What is Balsa

A

Lightest known wood

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Q

What is the hardest known wood?

A

Lignum Vitae

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Q

T/F mahogany is not rare in the wild

A

False: it is rare in the wild

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Q

What causes the “figure” in wood?

A

Irregular growth of the xylem cells

Q

What causes Birds Eye?

A

initiation of many tiny buds that then abort

Q

What are burls?

A

Unusual formations caused by pathogens or damage

Q

What makes plywood so special?

A

Lightweight, can stick together easily, sturdy

Q

What are veneers?

A

Thins sheets of wood glued to some other wood surface

Q

What was used as the evolution for writing paper?

A

clay -> papyrus -> vellum -> silk ->paper

Q

Who invented the paper making machine?

A

Nicholas Robert

Q

t/f: Acid id good of paper

A

False