See how the nutritional value of a nut is measured in a video experiment. Enter the test data into a table, make calculations, answer the questions.
Therefore, in order to measure the nutritional value of a food sample, it must be burned and the energy released during burning must be measured.
Such an experiment is technically quite complex.
Let's watch a video of a very simple and very imprecise experiment.
Test data
| Measurement | Example 1 | Example 2 |
| What food? | ||
| The mass of the empty cup | ||
| The mass of the cup with water | ||
| Initial water temperature | ||
| Final water temperature | ||
| The mass of the food sample with the holder at the beginning of the test | ||
| Mass of the food sample with the holder at the end of the test |
Calculations
| Mass of water | ||
| of water | ||
| Reduction in food weight | ||
| The energy () that heated the water | ||
| Nutritional value of food () |