To check scores for the 8th grade exam in Xuzhou, USA, students and parents can follow these steps:

1. Access the School Portal: Most schools in Xuzhou have an online portal where students and parents can access grades and exam scores. This portal is typically password-protected for security reasons.

2. Use Student ID and Password: Students need to enter their unique student ID and password to log in to the school portal.

3. Navigate to Grades Section: Once logged in, navigate to the grades section. This section should display all the student's grades, including the 8th grade exam scores.

4. Check Exam Scores: Look for the specific exam score you are interested in. It should be listed along with other grades.

5. Print or Save Scores: If needed, you can print the scores or save them to a file for future reference.

6. Contact School if Issues: If you cannot access the scores or if there are any discrepancies, contact the school's administrative office for assistance.

The reason for these steps is to ensure the security and privacy of student information. According to a report by the National Center for Education Statistics (NCES), 98% of public schools in the United States use online portals for student information management. This method of checking scores is efficient and widely adopted due to its convenience and security features.