Kimush they do SAT's in high school. A lot of scholarships you have to write an essay. Some of the schools do interviews depends where you apply. My oldest didn't have to interview but she wasn't applying to any of the big ivy league schools.
My frend whose son is going to Duke went there 3 times for interviews and visits. That wasn't the only school they flew to. It paid off for them as there were 2 schools who offered him full scholarships.