The purpose of this Selfie Science is to practice your measuring skills using a metric ruler. Include the length of your object using different units (mm, cm, dm, and m). 1. Find an object to measure. 2. Measure the object in mm, cm, dm, and m. 3. Create a Seesaw upload using the App of your choice. Be sure to describe the length of your object using the appropriate vocabulary words (metric system, ruler, units).