Children's Encyclopedia1976 |
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Pàgina 25
... Blood vessels carry oxygen from this space to the growing bird . Eggs are kept warm by the female bird , who sits on them until they hatch . Sometimes the male bird also takes a turn at sitting on the nest . When the eggs hatch , the ...
... Blood vessels carry oxygen from this space to the growing bird . Eggs are kept warm by the female bird , who sits on them until they hatch . Sometimes the male bird also takes a turn at sitting on the nest . When the eggs hatch , the ...
Pàgina 30
... Blood 7. Nerve 8. Fat . The nerve endings in the skin help us to feel cold , hot and pain . The Skin The skin is a waterproof covering that protects the body . It keeps us warm when it is cold and cool when it is hot . It helps us to ...
... Blood 7. Nerve 8. Fat . The nerve endings in the skin help us to feel cold , hot and pain . The Skin The skin is a waterproof covering that protects the body . It keeps us warm when it is cold and cool when it is hot . It helps us to ...
Pàgina 31
... blood absorbs the oxygen from the lungs and takes it to other parts of the body . When we breathe out , air passes ... blood collects the food from the intestines and carries it around the body . Blood The blood is the body's transport ...
... blood absorbs the oxygen from the lungs and takes it to other parts of the body . When we breathe out , air passes ... blood collects the food from the intestines and carries it around the body . Blood The blood is the body's transport ...
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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