Your bones need minerals in order to stay strong and healthy. The bone soaked in the vinegar had all of its minerals dissolved in acid, and therfore the bone became weak. The water provided minerals for the one in it. If you can't, let it soak for a few more days. Together with a friend play Simon Says, naming the bones and muscles.
Muscles are always either contracted or relaxed.
They can contract for only a fraction of a second, so when you think you're being very still, your muscles might be twitching. Back to Home.