Crossword Puzzle General Knowledge - Grade 8Online version This is a crossword that test the general knowledge of grade 8 students by Paul Mwaniki 1 Dangerous 2 the branch of science that deals with the properties, composition, and structure of elements and compounds 3 incompetent 4 electronic device that perfoms the information processing cycle 5 compounds made of carbon and hydrogen only 3 1 2 4 5