We get wood from trees. Trees can be found in the forest, farms, gardens, and along the streets. The longer trees are left the bigger and taller they grow. When there are well grown, they are ‘fell’ and taken to the Saw-Mill where they are cut into marketable sizes.
HARDWOOD
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SOFTWOOD
|
|
1
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This
is wood from dicot angiosperm trees.
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This
is wood from gymnosperm trees.
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2
|
They
usually have broad leaves.
|
They
have needle-like leaves
|
3
|
Hardwoods
are mostly deciduous.
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Softwood
trees are coniferous.
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4
|
Hardwoods
tend to be slower growing.
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Softwood
trees grow fast.
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5
|
Hardwoods
tend to be found mixed with a variety of other species.
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Softwood usually grows in huge
tracts of trees which may spread for miles.
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6
|
The
seeds of softwood are naked.
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The
seeds of a hard wood are enclosed.
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7
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Examples
include maple, balsa, oak, elm, iroko, opepe, mahogany, and sycamore.
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Some
examples include pine, redwood, fir, cedar, and larch.
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1. The cambium layer:
2. Sapwood:
3. Heart wood:
4. Medullary Rays:
5. The Annual Growth Ring:
6. The Pith:
7. The Bark or Curtex:
1. Artificial Seasoning: through the use of ‘kiln’
2. Natural seasoning: through air drying.
1. It makes the wood more durable
2. It makes the wood lighter in weight
3. It reduces the moisture content
4. It makes the wood more stable
5. It minimizes or prevents attacks from water, bacteria and fungi.
Mention 10 uses of wood.
Author: Precious Ikpoza
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