Length metric unit quiz for children, learn metric units of length for kids in first grade, second grade, third grade. A multiple choice question quiz, students are asked to estimate the length of different items/objects.They are required to choose answers from a list of options. This quiz tests students’ knowledge of measurement, estimation, and unit of length. During the quiz, it is important for tutors to supervise students because the unit of length (kilometers, centimeters, inches, meters, feet, and miles) may be confusing.Students can practice the quiz in school and at home because it is easy to access. At the end of the quiz, students will be able to differentiate the unit of length and estimate with it. This knowledge can be applied to life situations.Go Here for More Quizzes.