Food and digestion: The distance of the flame from the tube must be the same. The starting temp of the water must be the same. The same volume of water and mass of food.

Question

The distance of the flame from the tube must be the same.  The starting temp of the water must be the same. The same volume of water and mass of food.

Memorable Condor · Accepted Answer

What are the control variables when measuring the energy content of food ?

Food and digestion

The distance of the flame from the tube must be the same. The starting temp of the water must be the same. The same volume of water and mass of food.

What are the control variables when measuring the energy content of food ?

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