Lab: Calories in Food
This lab was conducted to find calories in many nuts, ours being the brazil nut. We did this by lighting a brazil nut on fire and heating a beaker with 50 mL of water and measuring the before and after temperatures.
Questions
1) Did you measure a temperature change in the food sample or the water?
The water
2) Did you measure the energy released by the food sample or the energy gained by the water?
The food sample (brazil nut)
3) What happens to the small amount of energy that is not absorbed by the water?
That energy was absorbed by the the tin can propping the beaker above the flame.
4) Were you surprised by any of the results? Explain
I was pretty surprised by how much energy was packed into that singal nut. I never really thought of Calories in that way, I just thought that I need about 2000 of them everyday. But now I have an image I can look back on to reflect on what the Calorie is in actuality.
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