<i>When a liquid changes to gas, does it condense or evaporate? Spell the plural of “leaf.” If a truck weighs 3 ½ tons, how many pounds does it weigh?</i> Plus decimals, synonyms and antonyms, plants and animals, the human body, root words, number patterns, Grab Bag, and government: <i>What do we call the highest court of law in the United States?</i> Brain Quest Grade 4 quizzes kids on the stuff they need to know when they need to know it, with 1,500 curriculum-based questions and answers reflecting the latest school standards. <p>Vetted by a panel of America's highest award-winning teachers, and embraced by kids and parents because it flat-out works, Brain Quest opens a world of information and education with its fast-paced question-and-answer format, bright full-color illustrations, and lively attitude. </p>