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Knowledge and Skills Statement

Earth and space. The student knows that the natural world includes earth materials that can be observed in systems and processes.
Glossary terms and definitions are consistent across kindergarten through high school in the TEKS Guide. The definitions are intended to give educators a common understanding of the terms regardless of what grade level they teach. Glossary definitions are not intended for use with students.

a natural phenomenon marked by gradual changes that lead toward a particular result; a continuing natural or biological activity or function

a regularly interacting or interdependent group of items forming a unified whole