Use Newton's 3 laws and identify the appropriate law, and thoroughly explain why in each situation.

Which Law and Why (for below examples)?

1) If you fire a bullet in space, it would keep moving forever.

2) When you shoot a gun, the recoil can sometimes bruise your shoulder.

3) A bowling ball and a marble are dropped into a swimming pool. Which ball will make a bigger splash and why?

4) In outer space, if 2 astronauts face each other and one pushes another, BOTH astronauts are forced backwards.

5) The force of fuel leaving the rocket causes the rocket to move forward in outer space.

6) Your bus driver tells you not to stand up on the bus.