A definition paper for the word back pack.

Backpack A backpack is a bag that is made of fabric, used to carry articles, and normally worn on one's back. School-age children and hikers most frequently use it. A backpack can be a very useful item, making it easier for its owner to carry numerous items at once. In addition, it leaves the wearer's arms free for other activities, whether riding a bicycle, scuffling with others, or merely opening doors. A wide variety of …

…children, college students, adults, and even seniors. Depending on where its owner is headed, a backpack may contain clothing, books, snacks, drinks, matches, CDs, or a gym suit. They have even given rise to a variation known as a fanny pack. Needless to say, the manufacturers of backpacks are presently enjoying good times. The simple bags of fabric that were used only by campers and hikers a few decades ago have definitely come of age.