In what country can you visit the cities of Glasgow and Edinburgh? How many cells does an amoeba have? Find a tall building in the letters wrote. Plus prefixes and suffixes measurements geography presidents the elements percentages homophones Grab Bag and: Ivan the Great ruled Russia from 1462 to 1505. How many years did he reign? Brain Quest Grade 6 quizzes kids on the stuff they need to know when they need to know it with 1 500 curriculumbased questions and answers reflecting the latest school standards.(Ages: 10 to 11)