Answer:
The law of conservation of matter states that in a chemical reaction matter cannot be created or destroyed
Explanation:
Answer:
The answer might be 4, been a while since I've done third grade math though.
Yo sup??
Force is a vector quantity therefore it has both direction and magnitude.
Hence scientists measure magnitude and direction of a force.
Correct answer is option A
Hope this helps
Battery represents a simple machine
Answer: A
Explanation: Protons and neutrons form the nucleus of the atom, with electrons orbiting it.