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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 >> FOSS
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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.
Activities in "Mixtures and Solutions" Investigation 1 (pages 12-15, 18-19, 23-24, 27-29, and 31-32), Investigation 2 (pages 11-14, 18-20, 23-25, 28-29, and 31-32), and Investigation 4 (pages 11-15, 18-19, 22-24, and 31) provide moderate coverage of the standard. These are complemented by "Mixtures and Solutions" Science Stories pages 1-3, 7-10, and 18-19.
The term "identify compounds" in this standard has two meanings. One is that you can identify what a compound is (a substance made of two or more elements chemically combined with each other). The other is that you can tell which compound a substance is (e.g., distinguishing sugar, saccharine, and aspartame). 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 the CONTENT TIP for this standard for examples.
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Aspects that help student learning:
Activities consistently build understanding through students' exploration of chemical and physical properties and mixtures and solutions. Students apply what they learn in one activity to the following activities.
Aspects that do not help student learning:
Activities provide experience with just a limited number of materials Treatment is weak with respect to showing how scientists use different properties of compounds to identify specific compounds. See the CONTENT TIP for this standard for examples of using melting point to identify specific compounds.
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