I WILL GIVE YOU BRAINLIEST Part A

Which statement is a central idea of the text?

The scientific method is based on observations.

The scientific method is based on reading scientific journals.

Scientists generate guesses in the scientific method.

Variables are sometimes used in the scientific method.
Question 2
Part B

Which detail from the text best supports the answer in Part A?

Conditions change in different experiments.

Experiments produce evidence for scientific ideas.

Hypotheses are ideas about what might happen.

Scientists share their results in journals and papers.