Submersible
DSV ALVIN, perhaps the most active and successful research submersible. (OAR/National Undersea Research Program (NURP); Woods Hole Oceanographic Inst.)
Any vessel capable of operating underwater such as the bathysphere and bathyscaphe, invented for research in oceanography can be called a submersible. True submersibles, however, are steerable, like the Alvin, an oceanographic vessel first launched in 1964. The most successful submersible is the nuclear submarine, which is capable of remaining underwater for lengthy periods of time.
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Torres de luz
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Torres de luz
by Gail GibbonsA colorful and accurate explanation of lighthouses-their purpose, history, and variety-including drawings of existing lighthouses.
$4.95
Paperback Book | Grades 3-5
Grades 3-5 $4.95
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Look What Came from Egypt
The Teacher Store 
Look What Came from Egypt
Each book in this elementary-level series explores, in a very simple fashion, the foods, words, inventions, toys, games and sports, religion, music, and crafts that a specific country has contributed to the world.
$6.95
Paperback Book | Grades K-3
Grades K-3 $6.95
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