You need to test the hypothesis several times and record all results. Once you obtain the same results several times, I think that means its a theory
Answer: The nucleus.
Explanation: In an atom, there are two main parts, the nucleus and the electron cloud/electron shells. The protons and neutrons are located in the nucleus, and the electrons are located in the electron shells/cloud/whatever.
Answer:
The balloon drifts in a counterclockwise direction from 9:00 a.m. to 12 (Midnight) 3.