a. mass 1. What do you call the measuring system that is most commonly use today? a. SI system b. scientific system c. English system 2. What kind of measurement does Amy do if she wants to measure the height of flagpole? d. none of the above b. length c. volume d. temperature 3. The unit "gram" measures what? a. volume b. weight c. length d. time 4. The unit "liter" measures what? a. volume b. weight c. length d. time 5. Which unit is biggest? a. millimeter b. meter C. decimeter 6. What do you call the instruments used to measure an angle? b. ruler C. protractor d. compass a. t-square d. kilometer​