LIVER LAB REPORT - Sharyland ISD

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					                  Transformation of Energy during Digestion
Question: How do we know that energy is being transformed during digestion?

Hypothesis: If I put liver in hydrogen peroxide then I can measure temperature to prove that energy
was transformed.

Materials:

Raw liver                        Petri dish
Scissors                         Graduated cylinder
75mL hydrogen peroxide           Goggles
Thermometer                      Gloves
Stopwatch                        Apron
Beaker


Data:

                BEEF       CHICKEN
                     o
Time (sec)    Temp ( C)    Temp (oC)
  0’ 30”
  1’ 00”
  1’ 30”
  2’ 00”
  2’ 30”
  3’ 00”


Graph:

Include: title, label x and y axis, units, dependent and independent variables, legend, use color

Conclusion Questions

    1.   What did cutting the liver represent?
    2.   What did the hydrogen peroxide represent?
    3.   Use your data to summarize what happened to the energy during the investigation.
    4.   What type of energy is being released?
    5.   How would you improve this investigation?
         Explain in detail

				
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posted:11/9/2011
language:English
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