How we can Reverse Each Word of String

Let us consider we have to reverse the following string: "I am reversing". After implementing the following code, we can expect the output as "I ma esrever" .

Code Snippet to reverse

string endv = "";
string word = "";
string s = "I am reversing";
foreach(char ch in s)
{
    if (ch == ' ')
    {
        endv += new string(word.Reverse().ToArray());
        endv += " ";
        word = "";
    }
    else
    {
        word += ch;
    }
}
endv += " ";
endv += new string(word.Reverse().ToArray());
Console.WriteLine(endv);
Console.ReadKey();