SCIENCE
Waldendorf, Kurt

How Deep Is the Ocean?

(4) K-3 Comparison Fun series. Meant to be shared, the slim easy reader begins with a note to adults and then uses mathematical comparisons to explain the depth of the ocean: "11 times deeper than sunlight can reach"; "as deep as six Grand Canyons." Some of the examples are hard to grasp and will need adult guidance. Crisp color photos illustrate the text; additional facts are appended. Reading list. Glos., ind.

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