---
title: "SAST5: Star Life Cycle Overview (Georgia Science standard)"
code: SAST5
cite_as: Georgia Standards of Excellence, Science, SAST5
subject: science
grades:
  - high-school
language: en
canonical_url: https://georgiahomeroom.org/standards/code/SAST5
md_url: https://georgiahomeroom.org/standards/code/SAST5.md
alternate_language_url: https://georgiahomeroom.org/es/standards/code/SAST5.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/high-school.md
index: https://georgiahomeroom.org/standards/index.md
---

# SAST5: Star Life Cycle Overview

Obtain, evaluate, and communicate information about the connections between mass, gravity and fusion with respect to the life cycle of stars.

- Subject: Science
- Appears in: High School, https://georgiahomeroom.org/standards/science/high-school.md

## Expectations

- **SAST5.a**: Develop and use models to explain the process of stellar evolution from star birth to star death, including binary systems.
- **SAST5.b**: Construct an argument based on evidence from the Hertzsprung-Russell diagram to assess the properties of stars, including density, luminosity, temperature, rates of fusion, and spectral class.
- **SAST5.c**: Ask questions to evaluate evidence that predicts the lifespan and final stage of stellar evolution based on mass. (Clarification statement: Include stellar remnants and events such as neutron stars, pulsars, black holes, supernovae.)
- **SAST5.d**: Construct an argument based on evidence that explores the connections among various cosmic phenomena and leading theories.

## Georgia Milestones coverage

No Georgia Milestones blueprint cites this standard.

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