Diving to a Deep-Sea Volcano (Scientists in the Field Series)
by Kenneth Mallory
Houghton Mifflin Books for Children; Published: 2006-10-02; Hardcover; Book
Best price: $1.99
Price in other shops: $17.00

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What's in the Tide Pool?
by Anne Hunter
Houghton Mifflin Books for Children; Published: 2000-08-28; Hardcover; Book
Best price: $1.74
Price in other shops: $5.95

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Rivers, Lakes, Streams, and Ponds (Biomes Atlases (Sagebrush))
by Richard Beatty
San Val; Published: 2003-06; School & Library Binding; Book
Best price: $12.50
Price in other shops: $20.25

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Hudson River: An Adventure from the Mountains to the Seas
by Peter Lourie
San Val; Published: 1998-03; School & Library Binding; Book
Price in other shops: $22.05

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Bajo El Agua/ Underwater (Descubre Los Animales) (Spanish Edition)
by Diane James
Demco Media; Published: 2002-02; Turtleback; Book
Price in other shops: $14.70

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Rio Grande: From the Rocky Mountains to the Gulf of Mexico
by Peter Lourie
Demco Media; Published: 2002-02; Turtleback; Book
Price in other shops: $18.67

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Seashells (True Books: Earth Science)
by Ann O. Squire
Children's Press (CT); Published: 2002-03; Library Binding; Book
Best price: $14.95
Price in other shops: $25.00

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Lake Superior (True Books: Geography: Great Lakes)
by Ann Armbruster
Children's Press (CT); Published: 1996-09; Library Binding; Book
Best price: $11.99
Price in other shops: $25.00

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Lake Ontario (True Books: Geography: Great Lakes)
by Ann Armbruster
Children's Press (CT); Published: 1996-09; Library Binding; Book
Best price: $131.85

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Magic Tree House Fact Tracker #17: Sea Monsters: A Nonfiction Companion to Magic Tree House #39: Dark Day in the Deep Sea
by Mary Pope Osborne, Natalie Pope Boyce
Random House Books for Young Readers; Published: 2008-03-25; Library Binding; Book
Best price: $8.25
Price in other shops: $12.99