Question

day 1: download or print the pdf for this lesson, and follow along in the \measurement lab\ as instructed. after completing the lab and the \apply and extend\ questions on the first day, answer the level 1 practice questions. once you place your scale on a stable, flat surface, what is the next step you should take to ensure your metric system mass measurement is accurate? you should press the \zero\ or \tare\ button before placing the object on the scale. you should press the \power\ button to turn the scale on before placing the object on the scale. you should press the \zero\ or \tare\ button after placing the object on the scale. you should press the \units\ button to make sure the scale is recording the measurement in pounds. level: 1/2 2 more questions to go measurement lab after level 1

Explanation:

To ensure accurate metric - system mass measurement on a scale placed on a stable, flat surface, one should press the "zero" or "tare" button before placing the object on the scale. This resets the scale to zero, accounting for any pre - existing weight or offset, ensuring that the measured mass is only that of the object.

Answer:

You should press the "zero" or "tare" button before placing the object on the scale.