Convert between units of length, mass and capacity with this set of three worksheets. Students will follow the rules for converting back and forth between units of measurement to complete the missing elements of the table. The culminating activity for each worksheet involves students measuring a classroom object and converting that measurement into four units. They will then colour the most appropriate unit of measurement for the object. Print one page per student, or if working in small groups, place a few sheets into write-and-wipe sleeves and reuse them for each group of students.