my k value came out to be extremely small(.00000457 W/m C). this is likely due to a calculation error.Or im using the wrong value for Q because this is also extremely small (.04W). this value seems incorrect because we have a huge temperature difference of 66 degrees Celsius. the uncertainty with these values should +/- 205 degrees Celsius.

two lab set ups the graph goes to the picture on the left. the second lab graph is below.

 in these pictures we found the conversion formula for Celsius to Fahrenheit using graphs.    

in this picture we found the temperature at a cross section where two different materials meet.