Clasificación de la Biblioteca del CongresoGC21.5

animals(399) Atlantic(24) beach(48) biography(308) biology(297) booklist(16) chemistry(29) children(112) children's(198) climate(119) climate change(131) coastal(20) conservation(105) disasters(40) dolphins(19) earth(111) ecology(310) ecosystems(32) education(38) educational(27) environment(487) environmental(33) environmental studies(11) environmentalism(71) experiments(21) exploration(144) exploring(15) fish(227) fishing(26) geography(462) geology(199) global warming(45) Grade 2(27) Hawaii(40) history(713) history of science(34) informational(120) juvenile(65) juvenile non-fiction(42) kids(44) life science(43) marine(140) marine life(135) maritime(100) maritime history(56) mer(13) natural disasters(72) natural science(43) nature(792) nature writing(26) nautical(82) nh(19) ocean(1,554) oceanography(1,394) oceans(1,147) photography(77) picture book(280) pollution(137) popular science(37) reference(216) rivers(27) sailing(35) science(2,804) science and technology(20) science nonfiction(29) scientists(48) sea(464) sea life(139) sea stories(16) seas(96) shipping(15) ships(26) shipwrecks(32) storms(16) submarines(32) sustainability(25) travel(108) volcanoes(21) weather(145) whales(45)