Childrens Illustrated Encyclopedia
159 Desert wildlife 159- THE VAST, DRY EXPANSE OF A DESERT may look uninhabited, but all kinds of plants and animals survive in ...
Find out more DESERT WILDLIFE 160 CONSERVATION Most desert wildlife is not in urgent need of conservation measures because deser ...
TONGUE The surface of the muscular tongue is covered by tiny bumps called papillae. Some house taste buds that detect five basic ...
162 WE HAVE KNOWN ABOUT DINOSAURS for only 190 years or so, but these great creatures roamed Earth for 160 million years—long be ...
DINOSAURS 163 THE END OF THE DINOSAURS There are many ideas about the end of the dinosaurs. Some people believe they died out be ...
164 AIDS Our body’s defense system, the immune system, helps us fight disease. In the 1980s, a new condition called AIDS (acquir ...
WHEN A PET DOG BARKS at a stranger or walks around in a circle before settling down to sleep, it is behaving in the same way tha ...
DOGS, WOLVES, AND FOXES 166 TOY DOGS Dog breeders have created dogs of all sizes and shapes by mating dogs with unusual features ...
Find out more 167 IF YOU ARE SICK, the doctor might give you a drug. Drugs, or medicines, are substances used in the treatment o ...
168 Ears E BALANCE The ears help us keep our balance. The three semicircular canals inside the ear contain fluid. As you move yo ...
169 Earth 169- A LARGE BALL OF ROCK spinning through space is our home in the universe. This is Earth, one of the eight major pl ...
EARTH 170 The sun is low in the sky and days are short, producing winter. Sun FORMATION OF EARTH Scientists have calculated that ...
171 Earthquakes INSTANT CHAOS Destruction can be so swift and sudden that people have no time to escape. Falling masonry crushes ...
172 East Africa 172- EAST AFRICA IS A REGION of physical contrasts, ranging from the semidesert of the north to the fertile high ...
EAST AFRICA 173 GORILLAS The forested mountains of Rwanda and Uganda are the last remaining refuge for gorillas, the world’s rar ...
She beli Bl ue (^) N ile W hi te N ile Nile Ju ba Lake Turkana Lake Nyasa Lake Victoria Einstein, Albert Lake Tanganyika Lake Ta ...
175 175- Ecology and food webs WE CAN LOOK AT NATURE in the same way that we look at a complicated machine, to see how all the p ...
ECOLOGY AND FOOD WEBS 176 HABITAT A habitat is a place where a certain animal or plant usually lives. There are several characte ...
177 EDISON’S LABORATORY Edison was one of the first inventors to establish a research laboratory. He used a team of experts and ...
178 EGYPT Painting of the time shows cattle being transported across the Nile River in special wide boats. Royal tombs were fill ...
«
4
5
6
7
8
9
10
11
12
13
»
Free download pdf