viernes, 22 de enero de 2010

WOOD

Hardwoods and Softwoods

There are two main groups of timber producing trees used commercially: softwoods and hardwoods.
Softwoods
Softwoods are coniferous trees. They are 'evergreen'.

Their general characteristics are:Straight, slender.
The crown is narrow.It has needle like leaves.The fruit is a cone.
Hardwoods
Hardwood trees are broadleaf and generally deciduous.
The general characteristics are:wide, round crown.
The leaves are broad.Its fruit may be: nut, berries, chestnuts.




martes, 19 de enero de 2010

VOCABULARY UNIT 3. MATERIALS

UNIT 5. WOOD

A
Ash:fresno


B
Birch: abedul
Beech: haya
Branch: rama
Bark: corteza
Broadleaf:hoja ancha


C
Chesnut: castaño
Cork: corcho

D
Deciduous tree: arbol de hoja caduca

E
Elm :olmo
Evergreen tree: hoja perenne

FFir:abeto

G
Growth rings: anillos de crecimiento

H
Heartwood: duramen (wood that has died)
Hardwood: Madera dura

L
Leaf: hoja
Leaves: hojas

N
Needle: acícula

O
Oak: roble

PPine: pino
Poplar: chopo

R
Roots raíces

SStem:tallo
Seed: semilla
Steel: acero
Sapwood: albura (living Wood)
Softwood: Madera blanda
Sap: savia

T
Timber: Madera de construcción
Tree: árbol
Trunk: tronco

WWood: madera
Wooden: de madera (A wooden chair)
Walnut: nogal

MATERIALS PROPERTIES





Interesting link about properties of materials:


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GOOD LUCK!!