---
title: "S8P1: Structure and Properties of Matter (Georgia Science standard)"
code: S8P1
cite_as: Georgia Standards of Excellence, Science, S8P1
subject: science
grades:
  - grade-8
language: en
canonical_url: https://georgiahomeroom.org/standards/code/S8P1
md_url: https://georgiahomeroom.org/standards/code/S8P1.md
alternate_language_url: https://georgiahomeroom.org/es/standards/code/S8P1.md
source_url: https://case.georgiastandards.org/ims/case/v1p1/CFDocuments/27a08dc6-416e-11e7-ba71-02bd89fdd987
source_last_changed: 2025-05-29
data_built: 2026-09-18
publisher: Georgia Homeroom, a free public-interest project of Georgia Civic Data. Not affiliated with or endorsed by the Georgia Department of Education or any school district.
up: https://georgiahomeroom.org/standards/science/grade-8.md
index: https://georgiahomeroom.org/standards/index.md
---

# S8P1: Structure and Properties of Matter

Obtain, evaluate, and communicate information about the structure and properties of matter.

- Subject: Science
- Appears in: Grade 8, https://georgiahomeroom.org/standards/science/grade-8.md

## Expectations

- **S8P1.a**: Develop and use a model to compare and contrast pure substances (elements and compounds) and mixtures.
- **S8P1.b**: Develop and use models to describe the movement of particles in solids, liquids, gases, and plasma states when thermal energy is added or removed.
- **S8P1.c**: Plan and carry out investigations to compare and contrast chemical (i.e., reactivity, combustibility) and physical (i.e., density, melting point, boiling point) properties of matter.
- **S8P1.d**: Construct an argument based on observational evidence to support the claim that when a change in a substance occurs, it can be classified as either chemical or physical.
- **S8P1.e**: Develop models (e.g., atomic-level models, including drawings, and computer representations) by analyzing patterns within the periodic table that illustrate the structure, composition, and characteristics of atoms (protons, neutrons, and electrons) and simple molecules.
- **S8P1.f**: Construct an explanation based on evidence to describe conservation of matter in a chemical reaction including the resulting differences between products and reactants.

## Georgia Milestones coverage

- Science Grade 8 (EOG). Matter. Matter (about 28% of the test; 13 points)

Source: Georgia Standards of Excellence, published by the Georgia Department of Education at case.georgiastandards.org.