Activity Detail
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The Effect of Temperature on the Rate of Dissolving
 


Activity Overview

In this activity, students' will use a Temperature Sensor to collect data and then analyze that data to determine the effect of temperature increases on the rate of dissolving. They will identify temperature as a factor in dissolving rate of reaction.

Before the Activity

  • Connect the Temperature Sensor in channel 1 of the CBL 2
  • Download DataMate™ program
  • See the attached PDF file for detailed instructions for this activity
  • Print pages 49 - 53 from the attached PDF file for your class

    		•

    		During the Activity

    		Distribute the pages to your class.
  • Complete the Hypothesis section on the Data Collection and Analysis page and predict the effect of water temperature on the dissolving time of a sugar cube


    • Follow the Activity procedures:
  • Place the temperature sensor in the first beaker with water and verify that the temperature is at 25' C
  • Add one sugar cube and start timing
  • Stir constantly
  • When the sugar cube dissolves stop the timer
  • Calculate the time taken to dissolve
  • Repeat the activity with water at 5' C and 35' C
  • Record the time and temperature data
  • Graph the data using the linear regression function

    		After the Activity

    		Students' will complete Student Data Collection and Analysis Sheet.

    Review student results
  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary

    		Other Downloads




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    view textbook alignment

    Subject Area:
    Science : Chemistry : Physical Changes

    Author:
    Texas Instruments

    Level:
    5-8

    Activity Time:
    60 Minutes

    Device:
    TI-73 Explorer™

    Apps:
    DataMate

    Software:
    TI Connect™, TI-GRAPH LINK™

    Accessories:
    CBL™/CBL 2™, Sensor - Temperature, TI Connectivity Cable, TI-GRAPH LINK™ Cable, Unit-to-Unit link cables

    Other:
    This is Activity 6 from the EXPLORATIONS Book:
    Activities for Middle Grades Science with the CBL 2™ and TI-73.

    The following materials are required for this activity:

  • Three 350 mL beakers
  • Graduated cylinder
  • Timer or watch with second hand
  • Three sugar cubes
  • Water at 5' C, 25' C and 35' C
  • Data Collection and Analysis pages (52-53)


    • Report an issue with this activity