This morning when I stepped outside I couldn’t believe how cold it was.  I got into my car and the temperature gauge read 34 degrees Fahrenheit.  The gauge reads the outside temperature so I knew it was a bit warmer than that inside the car.   I wondered how much warmer it really was.  And I wondered how warm it would get in the car before I got to school.  I also wanted to find out how long it would take for the car to warm up to a comfortable temperature of 70 degrees.  

I set the Chromebook and the heat probe on the passenger seat and began recording this data. I put the keys in the ignition and started the car.  When I was backing out of my driveway I opened the window because I couldn't see. I began my journey to school.  I put the heat on in the car and waited patiently for the vehicle to heat up.  It didn’t seem to take that long before I had to turn the heat down because I was getting too warm.  In no time at all I arrived at school. I parked the car, stopped the data collection and began my school day.

Students will use that story and the scatter chart (Saved Vis - Warming up the Car) to answer these questions:

• What was the starting temperature in the car? (in Fahrenheit)

• When did I open the window? (convert seconds to minutes)

• When did the car temperature reach 70 degrees fahrenheit?  (convert seconds to minutes)

• When did I get too warm and turn down the heat?  (in Fahrenheit)

• What was the temperature? (in Fahrenheit)

• How long did it take me to get to work? (convert seconds to minutes)

  
  

  Converting Celsius to Fahrenheit:

  
  http://www.rapidtables.com/convert/temperature/how-celsius-to-fahrenheit.htm