Question

constants
a statement about what will happen next in a sequence of events
feeling of doubt
the factors in an experiment that remain the same
comparing what you already know with new information to decide whether you agree with it

Explanation:

To determine which option defines "Constants" in the context of an experiment, we analyze each choice:

• "a statement about what will happen next in a sequence of events" refers to a prediction, not constants.
• "feeling of doubt" is unrelated to experimental constants.
• "the factors in an experiment that remain the same" matches the definition of constants in an experiment (they are kept unchanged to ensure a fair test).
• "comparing what you already know with new information to decide whether you agree with it" is evaluation or critical thinking, not constants.

Answer:

the factors in an experiment that remain the same