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These correlations are for older materials. They do not cover the materials adopted in 2006.
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>> Standard 1f >> Harcourt
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Standard: Show Content Tip
1f Students know differences in chemical and physical properties of substances are used to separate mixtures and identify compounds.
Holistic Rating: Moderate coverage of this standard.
Pages C6-C11 provide background about physical properties and the nature of mixtures and solutions. Pages C20-C27 provide moderate coverage of this standard (NOTE: the Teacher's Edition we used does not cite pages C22-C25 for this standard). Most of the description of compounds in on pages C50-C51.
The term "identify compounds" in the standard means that you can tell which compound a substance is (e.g., distinguishing baking soda and corn starch), not whether something is a compound or not. To understand this standard, students need to know that scientists use physical and chemical properties to distinguish among compounds and to determine the identity of a specific compound. As explained in the California Science Framework (page 69), "every compound has a unique set of chemical and physical properties that can be used to identify it." See CONTENT TIP for this standard for examples.
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Aspects that help student learning:
Page C25 cites many examples of using physical properties to separate the parts of a mixture, and the activities on page C31 reinforce this concept. The text also gives numerous examples of chemical reactions where the properties of products are different than those of the reactants.
The activity on pages C20-C21 illustrates how chemical properties can be used to distinguish compounds. The electrolysis activity on page C57 can be used to illustrate the difference between a compound (water) and the elements that make it up (hydrogen and oxygen).
Aspects that do not help student learning:
Text does not clearly contrast that mixtures retain properties of components while compounds have properties different than the components. The description of mixtures is primarily on pages C10-C11 while that of compounds is on pages C50-C51. Pages C24-C25 correctly state that the products of chemical reactions have properties different than those of the reactants, but it does not use the term "compounds." This would be a good place to introduce the term "compounds," and to contrast that compounds have properties different than those of their parts while mixtures do not.
See CONTENT TIP for this standard for a more detailed explanation of the distinction between mixtures and compounds, and for examples of how scientists use physical and chemical properties to determine the identity of a specific compound.
Teacher's Edition that we used cited these pages as addressing this standard, but we did not find a significant correlation:
C12-C17, C46-47
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