I am a chemical master in China too. And now I start to study in America for a chemistry master degree. I had assistantship for TA and scholarship for eating and dorm. So I do not pay anything and get $600 for a month. I also can be free to eat in dining house and live in dorm. When I applied this college, it just ask my Toefl degree. But my college is a very small college, no doctor degree.