No because they help to come up with tests that a person could run and then when they don't work just change the hypothesize to something that fits the tests or change the tests.
Answer:
Oppositely charged particles attract each other, while like particles repel one another. Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.
Explanation:
i think its a. hope this helps
Rubbing alcohol will float and corn oil will sink
