Activity Detail
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A Tale of Two Temperatures
 


Activity Overview

In this activity, students will collect data for a range of temperatures in units of Fahrenheit and Celsius, and develop a conversion formula for changing from one unit to the other.

Before the Activity

  • Install the CBL/CBR Application on the students' graphing calculators using TI Connect™ or TI-GRAPH LINK™, TI Connectivity cable and the unit-to-unit link cable
  • Connect the TI-73 to the CBL 2™ unit
  • Connect the two temperature probes to the CBL, one to Channel 1, and the second to Channel 2
  • Tape the two probes together so that the black tips are side by side
  • See the attached PDF file for detailed instructions for this activity
  • Print pages 15 - 33 from the attached PDF file for your class

    		•

    		During the Activity

    		Distribute the pages to your class.

    Follow the Activity procedures:
  • Prepare two containers of water, one hot and the other cold
  • Place the probes in cold water
  • Using temperature probes, measure temperature in both units of Fahrenheit and Celsius
  • Quickly move the probes to the container with hot water and continue measuring temperature
  • Plot Fahrenheit versus Celsius data
  • Create a model for the relationship between the units of Fahrenheit and Celsius
  • Examine the slope and y-intercept of your model
  • Analyze the accuracy of the measures made by the probes with the CBL device as compared to the True conversion formula values

    		After the Activity

    		Students will fill in the 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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    Subject Area:
    Science : Chemistry : Energy and Matter
    Science : Physical Science : Energy

    Author:
    Texas Instruments

    Level:
    5-8

    Activity Time:
    60 Minutes

    Device:
    TI-73 Explorer™

    Apps:
    TI-CBL™/CBR™ App

    Software:
    TI Connect™, TI-GRAPH LINK™

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

    Other:
    This is Activity 2 from the EXPLORATIONS Book:
    Data Collection Activities for the Middle Grades with the TI-73, CBL™, and CBR™

    The following materials are required for this activity:

  • FANDC.73p program
  • A cool and a warm liquid
  • Tape to hold the two probes together


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