Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Linear Functions
• Math: Middle Grades Math: Statistics and Probability
• Math: PreAlgebra: Probability, Statistics and Data Analysis
• Science: Physical Science: Energy
• Science: Physical Science: Heat Transfer

6-8

45 Minutes

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

TI Connect™

• ##### Accessories

CBL™/CBL 2™
Sensor - Temperature
TI Connectivity Cable

• ##### Other Materials
This is Adventure 10 from the EXPLORATIONS Book:
Adventures in Data Collection with TI-73 Explorer™.

The following materials are required for this activity:
• Three soda cans
• Spray painted black, white, and silver
• Putty, clay, or sticky tack
• Heat source (heat lamp or sun)

## Active Wear - Adventure 10

#### Activity Overview

In this adventure, students test which solar collector--black, white, or silver-- absorbs the most heat. They compare the difference between absorption and reflection. They create, interpret and analyze graphs of data. They also relate slope to rate of change.

#### Before the Activity

• Connect CBL 2™ to the calculator.
• Plug the temperature sensor into channel 1 of the CBL 2
• Launch DataMate program
• Spray paint one can black, one glossy white, and one metallic silver
• See the attached PDF file for detailed instructions for this activity
• Print pages 65 - 66 from the attached PDF file for your class
• Transfer files to student calculators using TI-Navigator™  "send to class" feature
• #### During the Activity

Distribute the pages to your class.

• Place the temperature sensor in the black can and seal the opening with putty
• Place the can on its side under the heat source (sun light or under a heating lamp)
• Take temperature readings every 30 seconds for 10 minutes
• Graph the data
• Find the change in temperature for each color

#### After the Activity

Students analyze the results and answer the questions in the worksheet

Review student results:

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