"The Assessment in Science asks students to demonstrate scientific knowledge and to apply scientific concepts, formulate hypotheses, make predictions, or use other scientific inquiry techniques. The grade 8 written examination is timed. Grade 8 students have two hours to complete the written test. The assessments also include a one-hour laboratory performance examination, which tests students’ skill using hands-on equipment and materials to answer specific questions." https://www.schools.nyc.gov/learning/testing/ny-state-science 

This page will provide you with general information and resources for state testing: https://www.nysed.gov/state-assessment/elementary-and-intermediate-level-science-tests