SCIENCE
Markle, Sandra

Down, Down, Down in the Ocean

(4) K-3 Illustrated by Bob Marstall. Markle divides a slice of the Pacific Ocean into four layers--surface, twilight, bottom, and sea floor--to discuss the different forms of life that live in each. The text describes sharks, whales, fish, plankton, and even bacteria in the ocean depths. Blue- and black-toned illustrations portray the animals in their habitats, though they lack variety. Glos., ind.

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