Boiling liquids that want to escape gas
Answer:
by taking your time in order to collect data
Explanation:
The correct answer is a descriptive investigation.
An investigation which does not involve hypotheses called descriptive investigation.
Hypotheses are termed as scientific hypotheses and require that one can test it. In hypothesis, previous observation can not satisfactorily be explained with an available scientific theory.
Working hypotheses are being proposed for further research.
The graphite of the pencil sits on top of the paper and won't affect the results. If you use ink, it will seep into the paper and itself be subjected to the chromatographic process.
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