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Knowledge and Skills Statement

Science concepts. The student understands the development of atomic theory and applies it to real-world phenomena.
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 theory of the nature of matter: all material substances are composed of minute particles or atoms of a comparatively small number of kinds and all the atoms of the same kind are uniform in size, weight, and other properties

detectable events that are observed through the senses or technology; can be explained through scientific laws, ideas, principles, and theories