Second Grade NGSS Science curriculum for the entire year!Use Science Sleuths to teach NGSS Earth's Systems: Process that Shape Earth, Structure and Properties of Matter, and Ecosystems: Interdependent Relationships in Ecosystems for second grade. Includes a complete integrated unit with teacher standard practices in the disciplinary core ideas, science and engineering practices, and crosscutting concepts. Other subject connections to ELA, Math, and Art are also included. Science Sleuths for NGS