Find resources aligned to Texas Essential Knowledge and Skills (TEKS)

S.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:

S.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;

2 Resources

Matter and Energy - Atomic Structure

Resource ID: S8M1L1 Grade Range: 8 Subject: Science

Using interactive exercises, students will describe the structure of atoms and the locations of particles with in the atom.

Introducing the Atom

Resource ID: R4SCI0016 Grade Range: 8 - 12 Subject: Science

A resource to be used for Tier I instruction for the introduction of the structure of atoms.

S.8.5.B

identify that protons determine an element's identity and valence electrons determine its chemical properties, including reactivity;

1 Resource

Matter and Energy - Elemental Properties

Resource ID: S8M1L3 Grade Range: 8 Subject: Science

Given illustrations or descriptions, students will identify that protons determine an element’s identity and valance electrons determine its chemical properties including reactivity.

S.8.5.C

interpret the arrangement of the Periodic Table, including groups and periods, to explain how properties are used to classify elements;

2 Resources

The Arrangement of Elements: The Periodic Table

Resource ID: R4SCI0029 Grade Range: 8 Subject: Science

This resource provides flexible alternate or additional learning opportunities for students to interpret the arrangement of elements on the Periodic Table, Eighth Grade Science TEKS (8)(5)(C).

Matter and Energy - Periodic Table

Resource ID: S8M1L5 Grade Range: 8 Subject: Science

Given descriptions, illustrations, or scenarios, students will interpret the arrangement of the Periodic Table, including groups and periods, to explain how properties are used to classify elements.

S.8.5.D

recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts; and

1 Resource

Matter and Energy - Chemical Formulas

Resource ID: S8M1L6 Grade Range: 8 Subject: Science

Given descriptions or chemical formulas containing subscripts, students will identify substances and determine the number of atoms of each element.

S.8.5.E

investigate how evidence of chemical reactions indicates that new substances with different properties are formed and how that relates to the law of conservation of mass.

2 Resources

Matter and Energy - Chemical Equations

Resource ID: S8M1L8 Grade Range: 8 Subject: Science

Given chemical equations containing coefficients, students will recognize if they are balanced or not and how that relates to the law of conservation of mass.

Matter and Energy—Chemical Reactions

Resource ID: S8M1L7 Grade Range: 6 - 8 Subject: Science

Given descriptions or illustrations, students will investigate how evidence of chemical reactions indicates that new substances with different properties are formed.