REMEMBER: You can think of a turnover as turning the ball over to the other team. Whenever a turnover happens, the other team gets the ball.
The scrimmage line shows the spot of the ball on the football field. When a turnover happens, a new scrimmage line and first down line will be marked on the field by the chain crew where the ball was declared dead.
A fumble happens when the ball carrier drops the ball and it's recovered by a player on the opposing team. When the ball carrier drops the ball, it becomes a loose ball and can be recovered by any player.
The ball carrier should protect the ball from being stripped by tucking it deep in the armpit of the dominant arm. The ball carrier should use his less dominant arm as his stiff arm to block any attempts made to strip the ball.