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Articles from Britannica encyclopedias for elementary and high school students.
- oak - Children's Encyclopedia (Ages 8-11)
Oaks are trees and shrubs of the beech family. There are about 450 species, or types, of oak. They are common in places with mild weather.
- oak - Student Encyclopedia (Ages 11 and up)
The majestic monarchs of the forest may take 100 years to reach maturity and then may live for another 900 years. Their wood provides one of the strongest and most durable of timbers.