Level 2 Earth and Space Science Learning Workbook covers all seven NCEA Level 2 Achievement Standards from the science matrix: Four internals - AS91187, AS91188, AS91189 and AS91190 Three externals - AS91191, AS91192 and AS91193. The special features of the workbook are: many clear, explanatory illustrations. key words and concepts highlighted and explained. fully worked examples. questions after each section of work. comprehensive answers at the back of the book. The write-on format keeps student notes and work in one place, providing a record of student work and a useful revision tool for tests and other assessments.