Accessible Text Version of Figure 1: Scope and Sequence for the Grades 6–8 Model Science Curriculum

Updated 1/23/2022

An asterisk   indicates that a performance expectation (PE) builds across multiple units.

The emphasis for each unit is labeled with text and indicated by its color:

  • Physical Science: orange
  • Earth and Space Science: lavender
  • Life Science: grey-brown

Unit Connections occur when a later unit intentionally and explicitly extends the science ideas students figured out in the prior unit.

Grade 6 Grade 7 Grade 8

6.1 Light and Matter

Unit Emphasis: Physical Science

Performance Expectations:

  • PS4-2  PE builds across multiple units
  • LS1-8  PE builds across multiple units

Unit Connections:

  • 6.2 Thermal Energy
  • 8.2 Sound Waves
  • 8.4 Earth in Space

7.1 Chemical Reactions and Matter

Unit Emphasis: Physical Science

Performance Expectations:

  • PS1-1  PE builds across multiple units
  • PS1-2  PE builds across multiple units
  • PS1-5
  • LS1-8  PE builds across multiple units

Prior PE the unit builds on: 

  • Physical Science
  • Life Science

Unit Connections: 7.2 Chemical Reactions and Energy

8.1 Contact Forces

Unit Emphasis: Physical Science

Performance Expectations:

  • PS2-1
  • PS2-2
  • PS3-1
  • ETS1-2  PE builds across multiple units
  • ETS1-3  PE builds across multiple units
  • LS1-8  PE builds across multiple units

Prior PE the unit builds on:

  • Physical Science
  • Life Science

Unit Connections:

  • 8.2 Sound Waves
  • 8.3 Forces at a Distance

6.2 Thermal Energy

Unit Emphasis: Earth and Space Science

Performance Expectations:

  • PS1-4  PE builds across multiple units
  • PS3-3
  • PS3-4
  • PS3-5
  • PS4-2  PE builds across multiple units
  • ETS1-4  PE builds across multiple units

Prior PE the unit builds on: Physical Science

Unit Connections:

  • 6.3 Weather, Climate, and Water Cycling
  • 6.4 Plate Tectonics and Rock Cycling
  • 6.6 Cells and Systems
  • 7.1 Chemical Reactions and Matter
  • 8.1 Contact Forces

7.2 Chemical Reactions and Energy

Unit Emphasis: Physical Science

Performance Expectations:

  • PS1-6
  • ETS1-2  PE builds across multiple units
  • ETS1-3  PE builds across multiple units
  • ETS1-4  PE builds across multiple units

Prior PE the unit builds on: Physical Science

Unit Connections: 7.3 Metabolic Reactions

8.2 Sound Waves

Unit Emphasis: Physical Science

Performance Expectations:

  • PS4-1
  • PS4-2  PE builds across multiple units
  • LS1-8  PE builds across multiple units

Prior PE the unit builds on:

  • Physical Science
  • Life Science

6.3 Weather, Climate and Water Cycling

Unit Emphasis: Earth and Space Science

Performance Expectations:

  • ESS2-4
  • ESS2-5
  • ESS2-6
  • PS1-4  PE builds across multiple units

Prior PE the unit builds on: Physical Science

Unit Connections:

  • 6.4 Plate Tectonics and Rock Cycling
  • 7.6 Earth's Resources and Human Impact

7.3 Metabolic Reactions

Unit Emphasis: Life Science

Performance Expectations:

  • LS1-3  PE builds across multiple units
  • LS1-5  PE builds across multiple units
  • LS1-7
  • PS1-1  PE builds across multiple units
  • PS1-2  PE builds across multiple units

Prior PE the unit builds on:

  • Physical Science
  • Life Science

Unit Connections:

  • 7.4 Matter Cycling and Photosynthesis
  • 8.5 Genetics

8.3 Forces at a Distance

Unit Emphasis: Physical Science

Performance Expectations:

  • PS2-3
  • PS2-5
  • PS3-2

Prior PE the unit builds on: Physical Science

Unit Connections: 8.4 Earth in Space

6.4 Plate Tectonics and Rock Cycling

Unit Emphasis: Earth and Space Science

Performance Expectations:

  • ESS1-4
  • ESS2-1
  • ESS2-2
  • ESS2-3

Prior PE the unit builds on:

  • Physical Science
  • Earth and Space Science

Unit Connections:

  • 6.5 Natural Hazards
  • 8.6 Natural Selection and Common Ancestry

7.4 Matter Cycling and Photosynthesis

Unit Emphasis: Life Science

Performance Expectations:

  • LS1-2  PE builds across multiple units
  • LS1-6
  • LS2-3
  • PS1-3

Prior PE the unit builds on:

  • Physical Science
  • Life Science

Unit Connections: 7.5 Ecosystem Dynamics and Biodiversity

8.4 Earth in Space

Unit Emphasis: Earth and Space Science

Performance Expectations:

  • ESS1-1
  • ESS1-2
  • ESS1-3
  • PS2-4
  • PS4-2  PE builds across multiple units

Prior PE the unit builds on: Physical Science

6.5 Natural Hazards

Unit Emphasis: Earth and Space Science

Performance Expectations:

  • ESS3-2
  • PS4-3
  • ETS1-1  PE builds across multiple units
  • ETS1-2  PE builds across multiple units

Prior PE the unit builds on:

  • Physical Science
  • Earth and Space Science

7.5 Ecosystem Dynamics and Biodiversity

Unit Emphasis: Life Science

Performance Expectations:

  • LS2-1
  • LS2-2
  • LS2-4
  • LS2-5
  • ESS3-3  PE builds across multiple units
  • ETS1-1  PE builds across multiple units

Prior PE the unit builds on:

  • Physical Science
  • Life Science

Unit Connections:

  • 7.6 Earth's Resources and Human Impact
  •  8.6 Natural Selection and Common Ancestry

8.5 Genetics

Unit Emphasis: Life Science

Performance Expectations:

  • LS1-2  PE builds across multiple units
  • LS1-4  PE builds across multiple units
  • LS1-5  PE builds across multiple units
  • LS3-1
  • LS3-2
  • LS4-5

Prior PE the unit builds on:

  • Physical Science
  • Life Science

Unit Connections: 8.6 Natural Selection and Common Ancestry

6.6: Cells and Systems

Unit Emphasis: Life Science

Performance Expectations:

  • LS1-1
  • LS1-2  PE builds across multiple units
  • LS1-3  PE builds across multiple units
  • LS1-8  PE builds across multiple units

Prior PE the unit builds on: Physical Science

Unit Connections:

  • 7.1 Chemical Reactions and Matter
  • 7.3 Metabolic Reactions
  • 8.1 Contact Forces
  • 8.2 Sound Waves

7.6 Earth's Resources and Human Impact

Unit Emphasis: Earth and Space Science

Performance Expectations:

  • ESS3-1
  • ESS3-3  PE builds across multiple units
  • ESS3-4
  • ESS3-5
  • ETS1-2  PE builds across multiple units

Prior PE the unit builds on:

  • Physical Science
  • Earth and Space Science
  • Life Science

8.6 Natural Selection and Common Ancestry

Unit Emphasis: Life Science

Performance Expectations:

  • LS1-4  PE builds across multiple units
  • LS4-1
  • LS4-2
  • LS4-3
  • LS4-4
  • LS4-6

Prior PE the unit builds on:

  • Earth and Space Science
  • Life Science
Page Last Updated: 05/20/2026