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water

(Encyclopedia) CE5 A. Water molecule (black circles represent valence-shell electrons) B. Structure of ice: Each oxygen atom (white circles) is bonded to four other oxygen atoms by hydrogen bonds…

space probe

(Encyclopedia) space probe, space vehicle carrying sophisticated instrumentation but no crew, designed to explore various aspects of the solar system (see space exploration). Unlike an artificial…

How the Planets and Satellites Got Their Names

Source: The U.S. Geological SurveyMERCURY Named for the winged Roman god of travel because it appears to move so swiftly.VENUS Roman name for the goddess of love. This planet was considered to be…

2013 Notable Books for Children

These books were chosen by a committee of librarians, educators, and other professionals for the Association for Library Service to Children. Younger…

Valentine's Day History of Candy Hearts

Ten new ways to convey those immortal words by Holly Hartman Related Links Valentine's Day AssortmentCandy QuizClassic Love Poems on the Web #fRELATED table tr #Pink td{background-…

DK Science: Animal Anatomy

PERFECT SYMMETRYSHARK ANATOMYEXOSKELETONCELLSCIRCULATORY SYSTEMFIND OUT MOREThe study of the structure of living things is called anatomy. All animals are made up of CELLS, some of which are…

DK Nature: Animals

WHICH FEATURES DO ALL ANIMALS HAVE IN COMMON? WHAT IS THE WORLD’S FASTEST ANIMAL? WHAT ARE WARM-BLOODED ANIMALS? HOW BIG DO ANIMALS GROW? BEHAVIORFIND OUT MOREAnimals are grouped into two main…

Tea: China's Most Popular Export?

Where did the name Earl Grey come from? by David Johnson In prehistoric China tea was probably used as a relish and as a medicine. Tea was first brewed as a medicine around 2700 B.C. in the…

The Lunchbox

A magical place where art and sandwich meet By Holly Hartman   Related Links Lunchbox Box Lunch Ploughman's Lunch Free Lunch…

Classical Mythology: The Limits of Craftsmanship

The Limits of CraftsmanshipClassical MythologyNot in Our Stars: Tragic Heroes and Their FatesSwitchblade SistersMutual Mistrust: The High Cost of JealousyThe Limits of CraftsmanshipDad, Can I Borrow…