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Colorado: Science [1995]
Standard 2: Physical Science: Students know and understand common properties, forms, and changes in matter and energy. (Focus: Physics and Chemistry) (Grades K - 12)
Currrent Standard
• 2.1 Students know that matter has characteristic properties, which are related to its composition and structure. (Grades K - 12)
Standard's Subset
In grades K-4, what students know and are able to do includes creating mixtures and separating them based on differences in properties (for example, salt and sand, iron filings and soil, oil and water). (Grades K - 4)
In grades K-4, what students know and are able to do includes examining, describing, classifying, and comparing tangible objects in terms of common physical properties (for example, state of matter, size, shape, texture, flexibility, color); (Grades K - 4)
In grades K-4, what students know and are able to do includes measuring common physical properties of objects (for example, length, mass, volume, temperature); and (Grades K - 4)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes classifying and describing matter in terms of elements, compounds, mixtures, atoms, and molecules (for example, copper is an element, water is a compound, air is a mixture); and (Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes developing simple models to explain observed properties of matter (for example, using a particle model to account for the solubility of a substance). (Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes examining, describing, comparing, measuring, and classifying objects based on common physical and chemical properties (for example, states of matter, mass, volume, electrical charge, temperature, density, boiling points, pH, magnetism, solubility); (Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes separating mixtures of substances based on their properties (for example, solubility, boiling points, magnetic properties, densities); (Grades 5 - 8)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes describing and explaining properties and composition of samples of matter using models
(for example, atomic and molecular structure, the periodic table); (Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes examining, describing, measuring, classifying, and predicting common properties of substances (for example, electrical charge, chemical reactivity, acidity, electrical conductivity, radioactivity, relationships in the periodic table); (Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes separating substances based on their chemical and physical properties (for example, color, solubility, chemical reactivity, melting point, boiling point); and (Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes using word and chemical equations to relate observed changes in matter to its composition and structure. (Grades 9 - 12)
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