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# Surf for More Math

## Chapter 10: Mass and Area

Lesson 3: Comparing Masses

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

Goals
Make direct and indirect comparisons of mass.
Use comparative language, such as heaviest, less heavy, and lightest.

[CN, PS, R]

Instructions for Use

Mr. Pip's Fruit Balance allows students to compare the masses of different fruits using a virtual pan balance. Use this tool with the whole class and pose various questions. Have the students compare 2 fruits. Predict which fruit will have the greater mass. Then check by using the balance.

You can click and drag various fruit into the two baskets (or pans) of the balance. Try to keep it balanced! Click “Manage Mass” to set the masses for the different fruits. Click “Sample Questions” for some questions about mass that you can answer using the balance.