Techniques ………. Activities >

Welcome to Cross-Content

It’s about cross-cutting ideas.

This web site provides free-to-use curriculum for high school teachers, students, and parent-guardians. Not all topics, concepts, and principles fit neatly within a single science discipline. For example, emphasis of 21st Century Skills (communication, creativity, collaboration, and critical thinking) apply to all of the natural sciences. We have divided our cross-cutting content into categories as grouped and described below.


Primary Sub-Groups
Popular Sub-Groups
Reference Sources


Our techniques section is rich with several topics and their classroom-ready material. The techniques introduce 21st Century Skills as well as Scientific Inquiry Skills. Each of these topics provide relevant teaching material applicable to biology, chemistry, earth science and physical science classes. (go)

Our activities section hosts topics and learning material for areas of interest across two or more core subject areas. These activities might be viewed as “extra” – to add variety, to provide substitute teacher material, or even bell-ringer material. Some of these look-and-feel like a typical topic in a core subject area – others diverge from this approach. (go)

Our math section provides quick, relevant math-practice worksheets to complement science-student math-chops. For example, the math worksheets are convenient to print and provide meaningful reinforcement to students who may finish work early, or need additional math practice for an upcoming science topic. (go)

Our labs section provides relevant, ready-to-use high school science lab assignments. Each emphasizes one-or-more of the several several lab competencies important for high school students to master. (go)

Our methods section is a reference source. Content centers on the scientific method, and describes the differences between scientific law and scientific theory. This section is intended mostly as a reference tool for students and teachers. This section does not include classroom material and worksheets found in the majority of Honeycutt Science topics. (go)

Our references section provides a repository to keep links and information resources conveniently available to instructors and super-users of this site. Also, this is a convenient source to reference our comprehensive science glossary. (go)

Oklahoma Science Standards

Science & Engineering Practices

The Science and Engineering Practices describe the major practices that scientists employ as they investigate and build models and theories about the world and a key set of engineering practices that engineers use as they design and build systems. The term “practice” is used instead of the term “process” to emphasize that scientists and engineers use skill and knowledge simultaneously, not in isolation.

There are eight science and engineering practices:

  1. Ask questions and define problems
  2. Develop and use models
  3. Plan and conduct investigations
  4. Analyze and interpret data
  5. Use mathematical and computational thinking
  6. Construct explanations and design solutions
  7. Engage in scientific argument from evidence
  8. Obtain, evaluate, and communicate information
Crosscutting Concepts 

The Crosscutting Concepts represent common threads or themes that span across science disciplines (biology, chemistry, physics, environmental science, Earth/space science) and have value to both scientists and engineers because they identify universal properties and processes found in all disciplines.

There are seven crosscutting concepts:

  1. Patterns
  2. Cause and Effect: Mechanisms and explanations
  3. Scale, Proportion, and Quantity
  4. Systems and System Models
  5. Energy and Matter: Flows, cycles, and conservation
  6. Structure and Function
  7. Stability and Change

Emphasis of Practices and Concepts (Topic X-Reference)

Below find a convenient cross-reference for our curriculum’s inclusion of the science & engineering practices, as well as the crosscutting concepts. While any given topic might include more than one idea from each area – there is a suggested instructor emphasis placed toward the bottom of each topic page. Typically, this suggestion is located in the Notes & Notices section of the page.

Scientific and Engineering Practices (Topic Cross-Reference)

Analyze and interpret data

Ask questions and define problems

Construct explanations and design solutions

  • Biology Topics 43 46 47
  • Physical Science Topics 25 34 45
  • Earth Science Topics 28 36 39
  • Chemistry Topics  22  28  46

Develop and use models

Engage in scientific argument from evidence

Obtain, evaluate, and communicate information

  • Biology Topics 33 39
  • Physical Science Topics 21 24 41
  • Earth Science Topics 14 27 37
  • Chemistry Topics  11  14  38

Plan and conduct investigations

Use mathematical and computational thinking

Cross-Cutting Concepts (Topic Cross-Reference)

Cause and Effect: Mechanisms and explanations

Energy and Matter: Flows, cycles, and conservation


  • Biology Topics 13 31 36
  • Physical Science Topics 15 41 45
  • Earth Science Topics 21 32
  • Chemistry Topics  14  15  17  25  36

Scale, Proportion, and Quantity

Stability and Change

Structure and Function

Systems and System Models

This web site provides free-to-use science curriculum for high school teachers, students, and parent-guardians. Quickly scan available topics for biologychemistryearth sciencephysical science. Discover more about John Honeycutt, creator of Honeycutt Science.

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