Difference between revisions of "AY Honors/Trees/Answer Key"

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==3. Name two examples each of trees that have been named for:==
 
==3. Name two examples each of trees that have been named for:==
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===a. What they are used for===
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*'''Sweet Gum:''' the gummy sap of this tree has been used as chewing gum.
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*'''Cork Oak''' forms a thick, rugged and corky bark. Over time this bark can develop considerable thickness, and this is harvested every 10-12 years as cork.
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*'''Balsam Fir:''' produces a resin which is known as ''Canadian Balsam''. A balsam is the same thing as a balm, a soothing liquid - anything that soothes, heals, or restores.
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===b. The surroundings or environment in which they grow===
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*'''Mountain Ash''' grow in the mountainous areas of the northern US and Canada.
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*'''Swamp Ash''' live in the swamps of the southern US.
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===c. Some distinctive feature===
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*'''Hornbeam:''' The common English name of "hornbeam" derives from the hardness of the wood (likened to horn) and the Old English beam, meaning a tree (like the German word "baum" which we know as "tannenbaum").
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*'''Tulip Tree:''' is so named because its flowers resemble tulip flowers.
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===d. The geographic region in which they live===
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*'''Brazilwood:''' is not named after Brazil - Brazil is actually named for the tree!
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*'''Cedar of Lebanon''', is a coniferous tree native to the mountains of the Mediterranean region, in Lebanon, western Syria and south central Turkey
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*'''Mexican Buckeye''' is a shrub or small tree native to northeastern Mexico and adjacent western Texas and southern New Mexico.
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===e. Persons who first found and described them:===
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*'''Douglas Fir:''' The common name honors David Douglas, the Scottish botanist who first introduced the tree into cultivation in 1826.
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*'''Fraser Fir:''' named after John Fraser, a Scottish botanist. Fraser Firs are farmed and sold as Christmas trees.
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==4. Give the common name and tell the difference between the two great classes of trees.==
 
==4. Give the common name and tell the difference between the two great classes of trees.==

Revision as of 00:35, 26 March 2011

Template:Honor header Template:AY Master

1. Describe the ways in which trees and shrubs differ.

Trees are generally taller than shrubs and have a main trunk from which all the secondary branches grow. Shrubs are generally shorter and may have multiple stems rather than a single trunk. Some plants can be considered either shrubs or trees depending on their growing conditions, so the division should not be considered exact.

2. Collect and identify typical leaves from 15 different species of trees. Spread neatly, press dry, mount, and label in a suitable notebook or on uniform-size sheets of paper.

Adventist Youth Honors Answer Book/Leaf collection

3. Name two examples each of trees that have been named for:

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4. Give the common name and tell the difference between the two great classes of trees.

The two great classes of trees are the gymnosperms and angiosperms. The gymnosperms do not produce flowers, but rather, produce naked seeds usually attached to the scale of a cone (such as a pine cone). The angiosperms do produce flowers which in turn become seed-bearing fruits (or nuts). More commonly, the gymnosperms are called evergreens, though this is not an accurate term because some angiosperms are evergreen (such as palms and the live oak). Also, the Ginkgo is a gymnosperm, but it is not evergreen. Gymnosperms and angiosperms are also commonly referred to as softwoods and hardwoods though those terms are not terribly accurate either, as several gymnosperms have hard wood and several angiosperms have soft wood.

5. Describe the importance of forest conservation in your area.

Properly managed, forests are a renewable resource. In order to ensure a continuous supply of forest products (such as lumber), forests must be properly cut and replanted. Forests also serve as an important habitat for several species, both animal and plant. When plants lose their habitat they simply die. When animals lose their habitat, some will die and others will move into other areas - notably, areas where humans live. This promotes undesirable encounters between potentially dangerous animals and humans, with the animal invariably getting the short end of the stick.

6. Name several examples of the kinds of wood used in each of the following:

a. Flooring for houses
Oak, maple, pine, teak.
b. Common plywood
Pine, fir, spruce
c. Furniture
Walnut, oak, cherry, maple, pine, mahogany
d. Ax handles
Hickory, ash
e. Fence posts
Locust, cedar, redwood, fir (treated)
f. Railroad ties
Hardwoods and softwoods.
g. Support beams for construction work
Oak, hickory, ash
h. Bows and arrows
Osage orange, yew, and elm for bows. Cedar, spruce, and fir for arrows
i. Ideal for use as kindling
Softwoods such as pine and cedar.
j. Burns slowly and leaves a bed of hot coals
Hardwoods, especially hickory and mesquite.

7. Name two examples each of trees which:

a. Grow best in wet lands
Bald Cypress, Sycamore, Willow, Swamp White Oak, Swamp Chestnut Oak, Overcup Oak, Tupelo Gum and Cottonwood.
b. Grow best at high levels in mountains

Larch, Bristlecone Pine (and many other pines), Birch, and Beech.

References

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