Mass units

Balance Cover - to cover the balance when not in use Zero key - when pressed, it resets the balance to a zero reading Digital display - to read the weight of the object Balance pan - to place the object on it for weighing

Measuring mass Add additional 5 mL of water to the beaker and now the digital display will show the weight of 15 mL of water Add additional 5 mL of water to the beaker and now the digital display will show the weight of 10 mL of water Add 5 mL of water to the beaker and the digital display will show the weight of the water Press the zero key to Place the beaker on th balance pan; the digital display will show the weight of the beaker Turn on the balance and press the zero key to show a zero reading on the digital  display window