Identify different forms of patterns and use them to group and classify specific objects.
Identify patterns as repeated processes or recurring elements in science and technology.
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Use characteristic physical or chemical properties to distinguish one substance from another (e.g., density, thermal expansion/contraction, freezing/melting points, streak test).
Describe how characteristic physical properties of matter can be used to distinguish one substance from another (e.g., boiling point, freezing/melting points).
Explain that materials are characterized by having a specific amount of mass in each unit of volume (density).
Describe a system (e.g., watershed, circulatory system, heating system, agricultural system) as a group of related parts with specific roles that work together to achieve an observed result.
Examine systems changing over time, identifying the possible variables causing this change, and drawing inferences about how these variables affect this change.