Caloric Value Lab: Calorimeter.

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Presentation transcript:

Caloric Value Lab: Calorimeter

Samples: Sample Notes Pork Rind Cheetos Popcorn Rice Cake

Predictions: Which food do you think will have the highest calorie/gram value? Why Which food do you think will burn the longest? (Assuming each sample is approximately the same size)

Pork Rind Cheetos Popcorn Rice Cake Beginning mass of food Sample Final Mass of Food Sample (ashes/unburned food) Mass of food burned (Beg-Final Mass) Beginning Water Temp Highest Water Temp Water Temp Change Mass of water used (1mL = 1g) Total Calories (water mass in g x temp change in oC) Total Kilocalories (Calories/1000) Kilocalories per gram (total kcal/mass of food burned) Time Sample Burned

Analysis Questions: Complete in fully developed sentences Compare the results of the samples. Suggest why different foods may produce different results. Feel free to view the nutrition panels. (3pts) What happened to the heat that was not “captured” by the water? (2pts) Which sample burned the longest? Did this agree with your prediction? (3 pts) Explain the relationship (if there is one) between the length the sample burns and its energy value (2pts) Compare and contrast burning the samples in the calorimeter to how your body “burns” energy (3pts)

Googles Loose Hair/Clothing secured No running/horseplay Items may be hot