Question

review the lab report conclusion and then answer the question. based on the data gathered, we measured the boiling point of water as 99.51 degrees celsius. the error against the expected measurement was 0.49 percent. sources of error may have been impurities in the water, contamination of the equipment, or human error in reading the thermometer. if we repeated the experiment, we might achieve more accurate results by sterilizing our equipment, using distilled water, and verifying that the thermometers readings are correct. what is the texts main purpose? to record an experiment and demonstrate learning to inform readers about water impurities to suggest that accurately reading a thermometer is an important skill to convince readers that the boiling point of water is 99.51

Explanation:

The text records the boiling - point measurement experiment (data, error percentage), lists error sources (impurities, equipment contamination, human error), and mentions improvement methods (sterilizing equipment, using distilled water, verifying thermometer readings). This shows it records the experiment and demonstrates learning from it. The other options are too narrow (e.g., only about water impurities or thermometer reading) or incorrect (the text doesn't aim to convince the boiling point is exactly 99.51 as it mentions error sources).

Answer:

to record an experiment and demonstrate learning