Includes three activities for reviewing and reinforcing metric measurement. Activity 1 is an "I have...Who has...?" vocabulary game using metric units, prefixes, and measurement definitions. Activity 2 is "Metric Mystery Boxes," an activity that is part logic puzzle and part calculating volume. Students are given a set of length, width, and height measurements, as well as a set of clues. Using both, the students match a set of four boxes with their correct dimensions. Activity 3 is a 2 part practice sheet that is great for warm-ups. All answer keys are included.