# Surf for More Math

## CHAPTER 10: MASS

**Lesson 5: Estimating and Comparing Masses**

Use these interactive activities to encourage students to have fun on the Web while learning about the mass of objects. Students can try these activities on their own or in pairs.

**Goal**

Use visualization to estimate and compare masses.

[ME, R, V]

**Instructions for Use**

**Estimating Mass** has students compare the mass of different items to 1 kilogram.

To use Estimating Mass, select Lesson 18.4. For each item determine if its mass is about, less than, or more than 1 kilogram. Select the answer and click Check Your Answer. When you have completed a certain number of questions, click End the Quiz to view your score.