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Standard 4.0 Chemistry: Students will use scientific skills and processes to explain the composition, structure, and interactions of matter in order to support the predictability of structure and energy transformations.
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A. Structure of Matter
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B. Conservation of Matter
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C. States of Matter
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1. Provide evidence and examples illustrating that many substances can exist as a solid, liquid, or gas depending on temperature.
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a. Use evidence from investigations to describe the effect that adding heat energy to different types of matter has on changing matter from one state to another.
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b. Based on data from investigations describe the effect that removing heat energy from different types of matter has on changing matter from one state to another.
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c. Analyze data gathered and formulate a conclusion on the effects of temperature change on most substances.
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D. Physical and Chemical Changes
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1. Cite evidence to support the fact that some substances can be separated into the original substances from which they were made.
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a. Investigate and identify ways to describe and classify mixtures using the observable and measurable properties of their components.
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b. Based on data gathered, identify and describe various processes used to separate mixtures.
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c. Use data gathered to provide a reasonable explanation for the idea that the mass of a mixture is equal to the sum of the masses of its components.
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