This card sorting activity about mass, weight, volume, density, and length will test your students’ understanding of measurement. The activity can be used as a preassessment, practice, review, or end of unit assessment. It contains 28 cards covering definitions, tools of measurement, units, and more. Cards, complete directions, a student activity worksheet, and an answer key are included. Need a digital resource like this? Check out my Measurement Digital Task Cards on BOOM Learning.R