Britannica Student Encyclopedia - 2010

comet volume 3 page 166

Moon volume 8 page 178

planets and dwarf planets volume 10

page 93, picture, volume 10 page 93

Earth volume 4 page 90

Jupiter volume 7 page 41

Mars volume 8 page 59

Mercury volume 8 page 102

Neptune volume 9 page 33

Pluto volume 10 page 101

Saturn volume 12 page 42

Uranus volume 14 page 39

Venus volume 14 page 66

orca (whale): see in index killer whale

orchestra (music)

MAIN ARTICLE volume 9 page 145

MORE TO EXPLORE

classical music volume 3 page 132

musical instruments volume 8

page 215

seating chart by instrument picture,

volume 9 page 145

orchid (plant and flower)

MAIN ARTICLE volume 9 page 146

MORE TO EXPLORE

fly orchid mimicry picture, volume 8

page 130

moth orchid picture, volume 9 page 146

vanilla volume 14 page 57

orders of knighthood

knight volume 7 page 74

ordinary (bicycle) picture, volume 2

page 69

ore (mineral)

metal volume 8 page 106, picture, volume

8 page 106

Oregon (state in the U.S.)

MAIN ARTICLE volume 9 page 147

MORE TO EXPLORE

geography

Elowah Falls picture, volume 9

page 147

Portland picture, volume 9 page 148

State Capitol picture, volume 12

page 20

Polk volume 10 page 116

Oregon Trail (historic route in the U.S.)

MAIN ARTICLE volume 9 page 149

MORE TO EXPLORE

Idaho volume 6 page 112

Oregon volume 9 page 148

pioneer life volume 10 page 88

Salem volume 12 page 20

organelle (part of cell)

animal cell picture, volume 3 page 66

plant cell picture, volume 3 page 67

organic material (chemical compound)

soil volume 12 page 124

organism: see in index living thing

Organization of: see in index under the

specific part of the name, for example,

African Unity, Organization of except as

found below

Organization of the Petroleum Exporting

Countries (multinational organization):

see in index OPEC

organized crime

crime volume 3 page 216

organized labor

Chavez volume 3 page 84

Industrial Revolution volume 6

page 134

labor volume 7 page 97

organ transplant (surgery): see in index

transplant

oriental coral snake (reptile)

various snakes picture, volume 12

page 113

Oriental fire-bellied toad (amphibian)

picture, volume 13 page 73

Oriental giant squirrel (rodent): see in

index giant squirrel of Asia

Oriental rug (floor covering)

rug and carpet volume 11 page 102

186 Operation PUSH BRITANNICA STUDENT ENCYCLOPEDIA

 

origami (art)

Peace Memorial Park picture, volume 6

page 60

Orion (Greek mythology)

Artemis volume 1 page 191

Orion (constellation) picture, volume 3

page 188

Orizaba (volcano in Mexico): see in index

Citlaltepetl

Orlando (city in Florida, U.S.)

Florida volume 5 page 35

Ornithischia (dinosaur order)

dinosaur volume 4 page 51, picture, volume

4 page 50

Ornithomimus (dinosaur genus)

dinosaurs in scale picture, volume 4

page 53

Orozco, Jose Clemente (Mexican

painter)

painting picture, volume 10

page 11

Orpheus (Greek mythology)

MAIN ARTICLE volume 9 page 151, picture,

volume 9 page 151

orthodontics (dentistry)

dentistry volume 4 page 38

orthodontist: see in index orthodontics

Orthodox Judaism

Judaism volume 7 page 38

OS (computing): see in index operating

system

Osage (Native American people)

MAIN ARTICLE volume 9 page 152

MORE TO EXPLORE

Peter Bigheart, Osage chief picture, volume

9 page 152

Wichita volume 15 page 44

Osceola (Seminole leader)

MAIN ARTICLE volume 9 page 152, picture,

volume 9 page 153

Osei Tutu (ruler of the Ashanti kingdom)

Ashanti volume 1 page 197

Osiris (Egyptian god)

MAIN ARTICLE volume 6 page 162, picture,

volume 6 page 163

MORE TO EXPLORE

ancient Egypt volume 4 page 113

Oskjuvatn, Lake (lake in Iceland) picture,

volume 6 page 108

Oslo (capital city of Norway)

MAIN ARTICLE volume 9 page 153

MORE TO EXPLORE

Norway volume 9 page 97

Osman I (Ottoman sultan)

Ottoman Empire volume 9 page 156

Ossa, Mount (mountain in Tasmania,

Australia)

Tasmania volume 13 page 19

Ostend Manifesto (U.S. history)

Buchanan volume 2 page 139

ostrich (bird)

MAIN ARTICLE volume 9 page 154, picture,

volume 9 page 154

MORE TO EXPLORE

bird volume 2 page 76

flightless birds volume 2

page 79

Oswald, Lee Harvey (U.S. assassin)

Kennedy volume 7 page 55

Oto (Native American people)

MAIN ARTICLE volume 9 page 154

MORE TO EXPLORE

Missouri people volume 8 page 145

Otoe-Missouria Tribe of Oklahoma

(Native American people)

Missouri people volume 8 page 145

Oto volume 9 page 155

Ottawa (Native American people)

Pontiac volume 10 page 123

Ottawa (capital city of Canada)

MAIN ARTICLE volume 9 page 155

MORE TO EXPLORE

Canada volume 3 page 23

Canada Day volume 3 page 27

Ontario volume 9 page 139

otter (mammal)

MAIN ARTICLE volume 9 page 155, picture,

volume 9 page 156

Otto III (Holy Roman emperor)

Holy Roman Empire volume 6 page 75

Otto, Nikolaus (German engineer)

automobile history volume 1 page 237

internal-combustion engine volume 6

page 141

technology and invention volume 13

page 27

Ottoman Empire (historic empire in

Eurasia)

MAIN ARTICLE volume 9 page 156

MORE TO EXPLORE

geography

Africa

Tripoli volume 13 page 98

Tunisia volume 13 page 110

Armenia volume 1 page 185

Balkan Peninsula volume 2 page 12

Albania volume 1 page 66

Belgrade volume 2 page 56

Bosnia and Herzegovina volume 2

page 113, volume 12 page 37

Bulgaria volume 2 page 148

Greece volume 1 page 219, volume 5

page 152