Education Technology

# Activities

• ##### Subject Area

• Science: Middle Grades Science: Diffusion

6-8

45 Minutes

• ##### Device
• TI-73 Explorer™
• ##### Accessories

CBL™/CBL 2™
Sensor - Temperature

## A Sweet Drink

#### Activity Overview

Students determine how the temperature of water affects the dissolving time of a sugar cube. They create, interpret and analyze graphs of data, find an equation of the line of best fit, and relate slope to rate of change.

#### Key Steps

• In this activity, students will dissolve a sugar cube in a beaker of water. They will do this for three different water temperatures. The CBL 2 will record the temperature of the water before the sugar cube is dropped in and the time it took for the sugar to dissolve.

• Students will record the data they have collected and then graph it as a scatter plot. They will also have the calculator fit a linear function to data. Using the line and the scatter plot students will analyze how water temperature affects the dissolving time.