Here are some innovative solar ovens that may interest you:

Now the the difference between heat and temperature, please take notes:

Make two columns: one for temperature, one for heat.   Compare and contrast.

draw diagrams.  take notes.

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Textbook Reading, Chapter 6.1 Thermal Energy - Heat and Temperature  +  Reading Guide 6.1
https://drive.google.com/file/d/0B07s3-bcUr7tT2RFa19FM3hBb2c/edit?usp=sharing
--Did you see the image on page 163 of the calorimeter?  This is like the Cola-rimeter that we used in class!  Be sure to finish the lab worksheet as well.

And lastly...