Chemistry Unit 2

Big Idea:

Review and extend understanding of the physical and chemical properties of matter including extensive and intensive properties, as manifested in elements, compounds, and mixtures.

Student Expectations:

Priority TEKS

C.4(A) differentiate between physical and chemical changes and properties

Focus TEKS

C.4(B) identify extensive and intensive properties

C.4(C) compare solids, liquids, and gases in terms of compressibility, structure, shape, and volume

C.4(D) classify matter as pure substances or mixtures through investigation of their properties

Ongoing TEKS

C.2(C) know that scientific theories are based on natural and physical phenomena and are capable of being tested by multiple independent researchers. Unlike hypotheses, scientific theories are well established and highly reliable explanations, but may be subject to change as new areas of science and new technologies are developed

Unit one TEKS

Student Learning Targets:

• I will define the states of matter and compare and contrast their properties.
• I will classify materials as elements, compounds, or mixtures, stating the evidence for the classification.
• I will distinguish between physical and chemical properties.
• I will identify extensive and intensive properties.
• I will compare and contrast mixtures and pure substances.
• I will classify mixtures as homogeneous or heterogeneous.
• I will list and describe several techniques used to separate mixtures.
• I will distinguish between elements and compounds.

Essential Questions:

• In what ways are changes in matter analyzed?
• In what ways are properties used to classify matter?

Extra Information:

Adopted Textbook: Chemistry, Pearson

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