500-599

500 – Science

 * **500 [|Sciences]**
 * 500 Natural sciences & mathematics
 * 501 Philosophy & theory
 * 502 Miscellany
 * 503 Dictionaries & encyclopedias
 * //504 Not assigned or no longer used//
 * 505 Serial publications
 * 506 Organizations & management
 * 507 Education, research, related topics
 * 508 [|Natural history]
 * 509 [|Historical], [|geographic], persons treatment
 * **510 [|Mathematics]**
 * 511 General principles
 * 512 [|Algebra] & [|number theory]
 * 513 [|Arithmetic]
 * 514 [|Topology]
 * 515 [|Analysis]
 * 516 [|Geometry]
 * //517 Not assigned or no longer used//
 * 518 [|Numerical analysis]
 * 519 [|Probabilities] & [|applied mathematics]
 * **520 [|Astronomy] & allied sciences**
 * 521 [|Celestial mechanics]
 * 522 Techniques, equipment, materials
 * 523 Specific celestial bodies & phenomena
 * //524 Not assigned or no longer used//
 * 525 [|Earth] (Astronomical geography)
 * 526 Mathematical geography
 * 527 [|Celestial navigation]
 * 528 [|Ephemerides]
 * 529 [|Chronology]
 * **530 [|Physics]**
 * 531 Classical [|mechanics]; [|Solid mechanics]
 * 532 [|Fluid mechanics]; [|Liquid mechanics]
 * 533 Gas mechanics
 * 534 [|Sound] & related [|vibrations]
 * 535 [|Light] & paraphotic phenomena
 * 536 [|Heat]
 * 537 [|Electricity] & [|electronics]
 * 538 [|Magnetism]
 * 539 Modern physics
 * **540 [|Chemistry] & allied sciences**
 * 541 [|Physical] & [|theoretical chemistry]
 * 542 Techniques, equipment, materials
 * 543 [|Analytical chemistry]
 * 544 [|Qualitative analysis]
 * 545 [|Quantitative analysis]
 * 546 [|Inorganic chemistry]
 * 547 [|Organic chemistry]
 * 548 [|Crystallography]
 * 549 [|Mineralogy]
 * **550 [|Earth sciences]**
 * 551 [|Geology], [|hydrology], [|meteorology]
 * 552 [|Petrology]
 * 553 [|Economic geology]
 * 554 Earth sciences of Europe
 * 555 Earth sciences of Asia
 * 556 Earth sciences of Africa
 * 557 Earth sciences of North America
 * 558 Earth sciences of South America
 * 559 Earth sciences of other areas
 * **560 [|Paleontology]; [|Paleozoology]**
 * 561 [|Paleobotany]
 * 562 [|Fossil] invertebrates
 * 563 Fossil primitive phyla
 * 564 Fossil Mollusca & Molluscoidea
 * 565 Other fossil invertebrates
 * 566 Fossil Vertebrata (Fossil Craniata)
 * 567 Fossil cold-blooded vertebrates
 * 568 Fossil Aves (Fossil birds)
 * 569 Fossil Mammalia
 * **570 [|Life sciences]**
 * 571 [|Physiology]
 * 572 [|Biochemistry]
 * 573 Physiological systems of [|animals]
 * //574 Not assigned or no longer used//
 * 575 [|Physiological systems of plants]
 * 576 [|Genetics] and [|evolution]
 * 577 [|Ecology]
 * 578 [|Natural history] of [|organisms]
 * 579 [|Microorganisms], [|fungi], [|algae]
 * **580 Plants**
 * 581 [|Botany]
 * 582 [|Plants] noted for specific vegetative characteristics and [|flowers]
 * 583 [|Dicotyledones]
 * 584 [|Monocotyledones]
 * 585 [|Gymnospermae] ([|Pinophyta])
 * 586 [|Cryptogamia] (Seedless plants)
 * 587 [|Pteridophyta] (Vascular cryptogams)
 * 588 [|Bryophyta]
 * //589 Not assigned or no longer used//
 * **590 Zoological sciences/Animals**
 * 591 [|Zoology]
 * 592 [|Invertebrates]
 * 593 [|Protozoa], [|Echinodermata], related phyla
 * 594 [|Mollusca] & Molluscoidea
 * 595 Other [|invertebrates]
 * 596 Vertebrata ([|Craniata], [|Vertebrates])
 * 597 Cold-blooded vertebrates, [|fishes]
 * 598 [|Aves] (Birds)
 * 599 [|Mammalia] (Mammals)