Children's Encyclopedia1976 |
Des de l'interior del llibre
Resultats 1 - 3 de 9.
Pàgina 9
... sometimes big ones do hit the earth . Huge radio telescopes like the ones on the right receive signals sent out by stars too far away to be seen by ordinary tele- scopes . They are also used to track spacecraft . The Air Around Us The ...
... sometimes big ones do hit the earth . Huge radio telescopes like the ones on the right receive signals sent out by stars too far away to be seen by ordinary tele- scopes . They are also used to track spacecraft . The Air Around Us The ...
Pàgina 14
... sometimes called a fossil fuel . This is because it was formed millions of years ago when the earth was covered with swamps . Huge fern - like plants grew then . When the plants died they fell into the swamps and decayed . Heat and ...
... sometimes called a fossil fuel . This is because it was formed millions of years ago when the earth was covered with swamps . Huge fern - like plants grew then . When the plants died they fell into the swamps and decayed . Heat and ...
Pàgina 45
... Sometimes they carved the figures of animals they hunted on rocks near the mouths of caves . Deep inside the caves they painted wonderful pictures of the animals . They drew outlines in black . Then they colored them in with red ...
... Sometimes they carved the figures of animals they hunted on rocks near the mouths of caves . Deep inside the caves they painted wonderful pictures of the animals . They drew outlines in black . Then they colored them in with red ...
Altres edicions - Mostra-ho tot
Frases i termes més freqüents
adult Aerotrain Africa Arctic areas armor atomic battle bigger birds body bomb bones brain breathe build built butterfly called carried cells cities coal colored crankshaft creatures crops cylinder deep desert dinosaurs earth eggs Egyptian plover electricity enemies engine feet fish flower forests galaxy gear Greeks ground grow heat hovercraft huge hunted insects inside jungle kinds knights land leaves light live look Louis Bleriot machine mammals miles millions Montgolfier brothers moon Mount Everest mountains move muscles nerves nest numbers oxygen picture piston plane pollen Prairie falcon railways rain reptiles river road rock Sahara Desert sailing sea anemone sea scorpions seeds shell ships shows skin South America South Pole space spacemen speed spider stars steam locomotives stone sun's sunlight surface tiny tractors trees turn wheels wind Wright brothers young