2020 Colorado Academic Standards

2020 Colorado Academic Standards Online

Use the options below to create customized views of the 2020 Colorado Academic Standards. For all standards resources, see the Office of Standards and Instructional Support.

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clear Content Area: Science // Grade Level: Second Grade // Standard Category: 1. Physical Science


Second Grade, Standard 1. Physical Science

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More information icon Prepared Graduates:

  • 1. Students can use the full range of science and engineering practices to make sense of natural phenomena and solve problems that require understanding structure, properties and interactions of matter.

More information icon Grade Level Expectation:

1. Matter exists as different substances that have observable different properties.

More information icon Evidence Outcomes:

Students Can:

  1. Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties. (2-PS1-1) (Clarification Statement: Observations could include color, texture, hardness and flexibility. Patterns could include the similar properties that different materials share.)
  2. Analyze data obtained from testing different materials to determine which materials have the properties that are best suited for an intended purpose. (2-PS1-2) (Clarification Statement: Examples of properties could include, strength, flexibility, hardness, texture and absorbency.) (Boundary Statement: Quantitative measurement is limited to length.)
  3. Make observations to construct an evidence-based account of how an object made of a small set of pieces can be disassembled and made into a new object. (2-PS1-3) (Clarification Statement: Examples of pieces could include blocks, building bricks or other assorted small objects.)
  4. Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot. (2-PS1-4) (Clarification Statement: Examples of reversible changes could include materials such as water and butter at different temperatures. Examples of irreversible changes could include cooking an egg, freezing a plant leaf and heating paper.)

More information icon Academic Contexts and Connections:

More information icon Colorado Essential Skills and Science and Engineering Practices:

  1. Plan and conduct an investigation collaboratively to produce data to serve as the basis for evidence to answer a question (Planning and Carrying Out Investigations) (Personal: Personal responsibility)
  2. Analyze data from tests of an object or tool to determine if it works as intended (Analyzing and Interpreting Data) (Entrepreneurial: Critical thinking/Problem solving)
  3. Make observations from several sources to construct an evidence-based account for natural phenomena (Constructing Explanations and Designing Solutions) (Entrepreneurial: Inquiry/Analysis)
  4. Construct an argument with evidence to support a claim (Engaging in Argument from Evidence) (Personal: Initiative/Self-direction)
  5. Connections to Nature of Science: Science Models, Laws, Mechanisms and Theories Explain Natural Phenomena: Science searches for cause - and - effect relationships to explain natural events.

More information icon Elaboration on the GLE:

  1. Students can answer the question: How do particles combine to form the variety of matter one observes?
  2. PS1:A Structure and Properties of Matter: Different kinds of matter exist (e.g., wood, metal, water), and many of them can be either solid or liquid, depending on temperature. Matter can be described and classified by its observable properties (e.g., visual, aural, textural), by its uses and by whether it occurs naturally or is manufactured. Different properties are suited to different purposes. A great variety of objects can be built up from a small set of pieces (e.g., blocks, construction sets). Objects or samples of a substance can be weighed, and their size can be described and measured.
  3. PS1:B Chemical Reactions: Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible (e.g., melting and freezing), and sometimes they are not (e.g., baking a cake, burning fuel).

More information icon Cross Cutting Concepts:

  1. Patterns: Patterns in the natural and human - designed world can be observed.
  2. Cause and Effect: Events have causes that generate observable patterns. Simple tests can be designed to gather evidence to support or refute student ideas about causes.
  3. Energy and Matter: Objects may break into smaller pieces and be put together into larger pieces or may change shapes.
  4. Connections to Engineering, Technology and Applications of Science: Influence of Science, Engineering and Technology on Society & the Natural World. Every human-made product is designed.

Need Help? Submit questions or requests for assistance to bruno_j@cde.state.co.us