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When New Pet Meets Old

When introducing a new pet to an already established resident animal, the less threatening the newcomer is, the better the chances he will be accepted. To animals, non-threatening means younger,…

DK Science: Medical Technology

HI-TECH IMAGING SURGERY ARTIFICIAL DEVICES FIND OUT MORE Technology plays an increasingly important role in modern medicine. Today, HI-TECH IMAGING allows doctors to view internal body…

DK Science & Technology: Changing Materials

HOW DO CHEMICAL REACTIONS CHANGE MATERIALS? RUSTING IRON WHAT MAKES GLUE STICK? HOW DOES HEAT CHANGE MATERIALS? REVERSIBLE CHANGESPERMANENT CHANGESFIND OUT MOREWe can use chemical reactions and…

Writing Well: Color My World

Color My WorldWriting WellPicture This: DescriptionHelp Is on the Way!Make a Deposit in the Idea BankTake the PlungeColor My WorldMusic to the EyesTools of the TradeAn Affair to Remember Suddenly…

Huron, indigenous people of North America

(Encyclopedia) HuronHuronhy&oobreve;rˈänˌ [key], confederation of four Native North American groups who spoke the Wyandot language, which belongs to the Iroquoian branch of the Hokan-Siouan…

morphine

(Encyclopedia) morphine, principal derivative of opium, which is the juice in the unripe seed pods of the opium poppy, Papaver somniferum. It was first isolated from opium in 1803 by the German…

bow and arrow

(Encyclopedia) bow and arrow, weapon consisting of two parts; the bow is made of a strip of flexible material, such as wood, with a cord linking the two ends of the strip to form a tension from which…

DK Science: Movement

RUNNING GAZELLEGLIDERJET PROPULSIONFLYINGMUSCLESSKELETONFIND OUT MOREAll animals are mobile for at least some part of their lives because they need to find food. Most movement is controlled by…