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40 Cards in this Set
- Front
- Back
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Wood |
Xylem |
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Log |
A cut or a fallen tree, ready to be cut |
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Lumber |
Term applied to wood after it is sawed/sliced into boards, planks, etc. |
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4 kinds of Lumber |
Timber Flitch Slab Kerf |
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Timber |
Piece of lumber five inches/ larger in its smallest diemnsion |
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Flitch |
Thick piece of lumber |
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Slab |
Kind of lumber cut tangent to the annual rings of wood running the full length of the log and containing st least one flat surface |
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Background of Timber/Wood |
The use of it for building construction dates back to thousand of years ago. |
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Classification of Wood |
Growth Density Leaves Color Grain |
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2 kinds of Growth |
Endogenous Exogenous |
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Endogenous Growth |
Growth from deep tissue (inside) |
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Exogenous Growth |
Growth from surface (outside) |
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2 kinds of Density |
Hardwood Softwood |
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Hardwood |
Flooring, stairs, panelling, furniture & interior trim |
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Softwood |
General Construction |
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Colors of Wood |
Red Brown Black Yellow White |
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2 shapes of leaves |
Needle shaped/ conifers Broad shapes/ deciduous |
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4 kinds of Graini |
Straight Cross (summer) Fine Coarse Winter |
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Components of Wood |
Cell: cellulose Lignin: covering of cells |
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Properties of Wood |
Hardness Dursbility Strength Flexibility |
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(Property of Wood) Hardness |
Resistance to indentation; dependent on weight of wood |
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(Property of Wood) Durability |
Resistance to decay; lifespan of wood |
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(Property of Wood) Strength |
Ability to resist stress & strain |
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(Property of Wood) Flexibility |
Bending capability of wood before breaking |
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Parts of a Tree (1st 5) |
Crown Annual Rings Root Hairs Trunk Heartwood |
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Parts of a Three 2nd part |
Sapwood Cambium Roots Inner Bark Leaves |
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Crown |
Trees increase in height by adding new growth twigs |
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Cambium |
Layer of cells b/w the bark and the woods |
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Heartwood |
Sapwood that has become inactive wood |
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Trunk |
Supports and produces the bulk of useful wood |
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Annual Rings |
Reveals the age of the tree by showing new growth & added each year |
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Root Hairs |
Absorb mineral from soil & send them up to nutrient salts in savana |
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Roots |
Anchor the tree from and help hold the soil against it |
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Structure of Wood |
Pith Heartwood Cambium Sapwood Annual Rays Modular rays Inner bank: insert saaknya po na layo pipitma? Annual Righs: pants |
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Pith |
Black study husband |
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Heartwood |
Central core of log |
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Cambium |
New woods fibers w/in of all old and new brad |
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Sapwood |
Portion near periphery, lighter in color in more than par. Good luck at tshirt |
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Annual Rings |
Annual growth of prephery to the lintek na gobyerno non . |
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Modular Raus |
Outer covering the wood that projects the internal later |
