Question: What could we call some specimens with a high proportion of latewood that explains why they weigh less than specimens with much less latewood?
Answer: porous

Question: What facet of wood is affected to some degree by the place where the tree grows?
Answer: character

Question: If you want wood that's easy to work with, what kind of growth would you want the tree to have?
Answer: moderate to slow

Question: What species of tree can be said to growth ring proportions that aren't determined just by their rate of growth?
Answer: conifers

Question: What counterpart of earlywood are scientists still trying to explain the formation of?
Answer: latewood

Question: While there is some relationship between where and how a tree grows, what can't anyone formulate to govern it?
Answer: a rule

Question: What kind of woods always have very clearly marked seasonal growth?
Answer: ring-porous

Question: What size pores form early in ring-porous woods' growing season?
Answer: large

Question: When does the denser tissue the new pores abut come from?
Answer: the year before

Question: Ring-porous hardwoods have a clear relationship between their properties and what other factor?
Answer: rate of growth

Question: Is harder, heavier wood indicated by narrower or wider growth rings?
Answer: wider

Question: What kind of wood with a name that starts with "H" is a ring-porous hardwood?
Answer: hickory

Question: If the growth rings are wider, was the growth of the tree slower or more rapid?
Answer: more rapid

Question: What is the only kind of wood that will definitely be harder and stronger when it grows faster?
Answer: ring-porous

Question: Which specific type of wood within ring-porous woods have more fibers to make it strong?
Answer: latewood

Question: When there is less latewood, what is diminishing?
Answer: breadth of ring

Question: Does slow or rapid growth make relatively porous, light wood?
Answer: slow

Question: What kind of oak has just 6-10% volume of large vessels in the log?
Answer: good

Question: What kind of fibers are in the latewood of good oak, making it very firm?
Answer: thick-walled

Question: What term is sometimes used for wood with wide rings?
Answer: second-growth

Question: Do young trees grow more quickly in open stands or in a closed forest?
Answer: open stands

Question: What property is important to manufacturers who use "second-growth" hardwood?
Answer: strength

Question: What specific kind of "second-growth" hardwood is often used to make handles and spokes? 
Answer: hickory

Question: What organization tested hickory to find out about its properties?
Answer: U.S. Forest Service

Question: What kind of wood often has ring divisions that can't even be seen by looking at it?
Answer: diffuse-porous

Question: In diffuse-porous woods, if the demarcation between rings is obvious, what type of difference within the ring might not be?
Answer: structure

Question: What adjective describes how our eyes function without a tool like a microscope to help?
Answer: unaided

Question: What kind of wood has all similarly sized vessels?
Answer: diffuse-porous

Question: What rate of growth in a tree will make the wood from it stronger than trees that grow very slowly or very quickly?
Answer: medium

Question: The capability of diffuse-porous woods to carry what substance is spread out in the growth ring?
Answer: water

Question: What division of trees are diffuse-porous woods more similar in growth rate to than ring-porous woods?
Answer: conifers

Question: Does uniformity of the texture and grain of wood usually result from much or little contrast between earlywood and latewood?
Answer: little

Question: What's another term used for "conifer" wood?
Answer: dicot

Question: What type of plants produce material that is referred to as "wood" even though it is technically not?
Answer: monocot

Question: What monocot plant produces "wood" by the same name that's often used for flooring and veneer?
Answer: bamboo

Question: While we call bamboo "wood," what botanical family does it belong to?
Answer: grass

Question: Along with bamboo, what's the other monocot that's a major source of so-called "wood"?
Answer: palms

Question: Which property of wood reveals the most about its quality?
Answer: specific gravity

Question: In addition to lumber strength, what important indicator of wood's quality can be determined using specific gravity?
Answer: pulp yield

Question: What measurement is expressed in mass per unit substance?
Answer: density

Question: When wood dries and shrinks, what happens to its density?
Answer: increases

Question: When wood is described as "green," what does "green" mean?
Answer: water-saturated

Question: Along with growth, what kind of factors determine the density of wood?
Answer: physiological

Question: Into how many characteristics are the factors of wood combined?
Answer: one

Question: What author called wood's density "fairly easily measured"?
Answer: Elliott

Question: What should be anticipated because of the many factors that influence wood's density?
Answer: Variation

Question: What specific type of growth has an effect on the density of wood?
Answer: radial

Question: Which part of a tree can have vertical or horizontal variation in its specific gravity?
Answer: bole

Question: Variation in what measurement is sometimes greater within one tree than from one tree to another?
Answer: density

Question: What tiny object's source plays a role in determining wood density?
Answer: seed

Question: What term do we use for the wood that comes from pine trees?
Answer: softwood

Question: What kind of wood does an oak tree have?
Answer: hardwood

Question: Is balsa a softwood or a hardwood?
Answer: hardwood

Question: What's an example of a softwood that isn't "soft," and is actually harder than a lot of hardwoods?
Answer: yew

Question: What's the scientific name for trees like the oak with broad leaves?
Answer: dicotyledons

Question: What kind of relationship exists between a tree's properties and its wood's properties?
Answer: strong

Question: What property of wood varies according to species?
Answer: density

Question: What property of wood has a correlation to its density?
Answer: strength

Question: Is mahogany a hardwood or a softwood?
Answer: hardwood

Question: What hobby is balsa wood often used for?
Answer: model building

Question: What approximate percentage of carbon does wood have?
Answer: 50%

Question: What element makes up about 6% of the chemical composition of wood?
Answer: hydrogen

Question: About what percentage of wood is composed of nitrogen?
Answer: 1%

Question: Which element in wood composes about 42% of its weight?
Answer: oxygen

Question: What element joins potassium, calcium, manganese, iron, and sodium to make a combined 1% of the chemical composition of wood?
Answer: magnesium

Question: How many main components make up wood, not counting water?
Answer: three

Question: What's the name for the crystalline polymer derived from glucose?
Answer: Cellulose

Question: After cellulose, what component is most plentiful in wood?
Answer: hemicellulose

Question: What kind of trees have about 30% hemicellulose?
Answer: conifers

Question: Which of the three main components of wood is used to manufacture paper?
Answer: cellulose

Question: What component of wood determines whether it is hardwood or softwood?
Answer: lignin

Question: Which wood has lignin that comes primarily from one type of alcohol?
Answer: Softwood

Question: Which type of alcohol mainly becomes softwood lignin?
Answer: coniferyl

Question: In addition to coniferyl alcohol, what other alcohol is in hardwood lignin?
Answer: sinapyl

Question: Which kind of wood contains lignin derived from two main alcohol sources?
Answer: Hardwood

Question: What's the name for the low molecular weight organic compounds in wood?
Answer: extractives