Jan's hypothesis was proven to be correct by other students' experiments. it's possible her hypothesis can be made into a

The given blank can be filled with theory.

Explanation:

A theory in science is well-substantiated, tested, and unifying illustration for an array of proven and verified factors. A theory is always supported by evidence. On the other hand, a hypothesis is only a suggested probable consequence and is falsifiable and testable. A scientific hypothesis refers to a suggested outcome for an undemonstrative happening that does not get fit into the presently accepted scientific theory. However, if a hypothesis has been proven correct by other experiments, then it is probable that the hypothesis can be converted into a theory.