Journal Entry #8

Materials: 
1. Pushpins
2. Buttons
3. Bottle caps
4. Pop tabs
5. Washers + bolts
6. Paper clips
7. Corks
8. Cotton balls
9. Beads
10. Marbles

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Savatree.com
· An average American uses about 750 pounds of paper every year, and 95% of homes are built using wood. That means each person uses the equivalent of one 100 feet tall, 16-inch diameter tree every year for his or her paper and wood product needs.
· The average tree in an urban/city area has a life expectancy of only 8 years.
· The tallest tree in the country is a Coast Redwood growing in northern California's Redwood National Park. It is 369 feet tall and over 2000 years old!
· Trees are the longest living organisms on the planet and one of the earth's greatest natural resources.
· A single tree produces approximately 260 pounds of oxygen per year. That means two mature trees can supply enough oxygen annually to support a family of four!
· Water originating in our national forests provides drinking water for over 3400 communities, and approximately 60 million individuals.

Treesaregood.com
· One of the tallest soft wood trees is the General Sherman, a giant redwood sequoia of California. General Sherman is about 275 ft or 84 m high with a girth of 25 ft or 8 m.
· The 236 ft or 72 m high Ada Tree of Australia has a 50 ft or 15.4 m girth and a root system that takes up more than an acre.
· The world's tallest tree is a coast redwood in California, measuring more than 360 ft or 110 m.
· The world's oldest trees are 4,600-year old Bristlecone pines in the USA.
· Tree rings provide precise information about environmental events, including volcanic eruptions.

Weekendgardener.net 
· The most massive living thing on earth is the Giant Sequoia in the Redwood Forest of California. It stands nearly 30 stories tall and 82.3 feet in circumference. Its weight is estimated at 2,756 tons.
· No tree dies of old age. They are generally killed by insects, disease or by people. California Bristlecone Pines and Giant Sequoias are regarded as the oldest trees and have been known to live 4,000 to 5,000 years.

· There are about 20,000 tree species in the world. The United States has one of the largest tree treasuries second only to India.

· The largest area of forest in the tropics remains the Amazon Basin, amounting to 81.5 million acres.

· Arbor Day was first observed in Nebraska in 1872. That state is now home to one of the world's largest forests planted by people - over 200,000 acres of trees.

· Some trees can "talk" to each other. When willows are attacked by webworms and caterpillars, they emit a chemical that alerts nearby willow of the danger. The neighboring trees then respond by pumping more tannin into their leaves making it difficult for the insects to digest the leaves.

· Knocking on wood for good luck originated from primitive tree worship when rapping on trees was believed to summon protective spirits in the trees.
· Trees receive an estimated 90% of their nutrition from the atmosphere and only 10% from the soil.

· Trees grow from the top, not from the bottom as is commonly believed. A branch's location on a tree will only move up the trunk a few inches in 1000 years.

Tree-facts.com 
· Trees can increase the value of a house by 10%.
· The tallest tree in the world is a redwood in California which is 360 feet tall.
· 4,000 lbs of wood are produced annually by one acre of trees.
· Trees make water cleaner by filtering rain.
· Tree rings indicate the age of a tree.
· Trees facts reveal that trees have psychological benefits. Both blood pressure and muscle tension drop when people are shown or placed in a tree environment.
· If you want to save on air conditioning costs, plant trees. They can cool a building by up to 20%.
· there are 5.2 million trees in New York City alone.
· The value of a full-grown, healthy tree can fall between $1,000 and $10,000.