Question

select the correct answer from each drop - down menu. complete the statements about the nature of scientific knowledge. among the different types of scientific knowledge. hypotheses are likely to be modified or discarded most frequently. long ago, in the 1600s, scientists discarded the phlogiston theory because drop - down options: scientists wanted to explain things differently, new evidence didnt support it, it was too old and needed to be replaced

Explanation:

First Drop - down (Type of Scientific Knowledge):

Scientific hypotheses are tentative explanations that are highly subject to modification or discard as new evidence or better explanations emerge. Theories (like phlogiston was a theory, but the first blank is about the type most likely modified/discarded long ago) – hypotheses are more provisional. So "hypotheses" fit here as they are the most likely to be modified or discarded frequently, especially historically as science progressed.

The phlogiston theory was discarded because new experimental evidence (like Lavoisier's work on oxygen and combustion) did not support the idea of phlogiston. The option "new evidence didn't support it" is correct. "Scientists wanted to explain things differently" is not the main reason (it's about evidence, not just preference), and "it was too old..." is incorrect as scientific discard is based on evidence, not age.

Answer:

hypotheses

Second Drop - down (Reason for Discarding Phlogiston Theory):