## CHAPTER 10: MEASUREMENT: TIME AND MASS

**Lesson 6: Measuring Mass in Grams**

**Goal**

Estimate and measure mass in grams.

**Instructions for Use**

Pan Balance — Shapes provides you with a virtual pan balance to measure the mass of different shapes.

Click and drag a coloured shape onto one side of the pan balance. Click on another shape to place on the other side of the pan balance. Keep adding shapes until the two sides balance. The balanced shapes will appear in the table to the right. Click “Reset Balance” to try balancing other shapes. Click “Clear Table” to clear the balanced shapes shown in the table.

Pretend the red squares are 1 gram each.

What is the mass of a blue circle?

What is the mass of the pink triangle?

What is the mass of the yellow diamond?