Texas Assessments Standards (STAAR)
TX.STAAR.8. STAAR Grade 8 Science Assessment
Reporting Category 1: Matter and Energy - The student will demonstrate an understanding of the properties of matter and energy and their interactions.
(8.5) Matter and energy. The student knows that matter is composed of atoms and has chemical and physical properties. The student is expected to:
8.5 (A) Describe the structure of atoms, including the masses, electrical charges, and locations, of protons and neutrons in the nucleus and electrons in the electron cloud. Readiness Standard (STAAR)
Scientific Investigation and Reasoning Skills: These skills will not be listed under a separate reporting category. Instead, they will be incorporated into at least 40% of the test questions in reporting categories 1-4 and will be identified along with content standards.
(8.3) Scientific investigation and reasoning. The student uses critical thinking, scientific reasoning, and problem solving to make informed decisions and knows the contributions of relevant scientists. The student is expected to:
8.3 (B) Use models to represent aspects of the natural world such as an atom, a molecule, space, or a geologic feature. (STAAR)