The NYSSLS are based, at least in large part, on A Framework for K-12 Science Education. The links below offer a copy of that document as a whole and of key document sections easier access.
A Framework for K-12 Science Education
Framework Snapshot -- Science and Engineering Practices
Framework Snapshot -- Crosscutting Concepts
Framework Snapshot -- DCI: Physical Sciences
Framework Snapshot -- DCI: Life Sciences
Framework Snapshot -- DCI: Earth and Space Sciences
Framework Snapshot -- DCI: Engineering, Technology, and the Application of Science