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Unit 2: Introduction to Matter

Students explore the chemical and physical properties of matter and discover how scientific ideas are connected to each other rather than existing in isolation.

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9 Segments in this Unit

Systems and System Models , Cause and Effect, and Structure and Function.

Segment A: Properties of Matter

In this segment, our students learn about physical properties of matter using the densities of pennies as a model.

Students discuss results after measuring the and density of pre-1982 and post-1982 pennies

Segment B: Density Lab Results and Crush Lab

Our students continue their discussion of penny densities in this segment and begin a crushing experiment to examine the different physical properties of chemicals.

Host talks about Intermolecular Forces.

Segment C: Physical Properties and Phase Change

In this segment, we continue with our exploration of physical properties, including brittleness and malleability. We also learn about phase changes and observe a demonstration on the freezing point of water.

Host instorudced a new guest from the Fernbank Sciene Center, Adrian Elliott.

Segment D: Phase Change Demonstrations

Dr. Adrian Elliott from the Fernbank Science Center joins us in this segment for a special interview, and our students discuss sublimation and deposition.

Cross Cutting Concept: Cause and Effect and Patterns.

Segment E: Chemical Properties

During this segment, we learn the difference between chemical and physical properties, and we see a demonstration of reactivity.

Cross Cutting Concept: Systems and System Models and Structure and Function.

Segment F: Mixtures

Homogeneous and heterogeneous mixtures are the focus of this segment as well as solutions and alloys.

Unit 2 Segment G

Segment G: Separating Mixtures

In this segment, students learn how to separate particles from a mixture while completing a candy chromatography lab.

Students discuss the results of the candy chromatograpghy experiment.

Segment H: Chromatography Results and Mixtures Challenge

Our students begin this segment by discussing the results of their candy chromatography experiment. Then they’re given an engineering design challenge to further explore the process of separating solutions.

Science and Engineering Practice: Constructing Explanations.

Segment I: Mixtures Challenge Results and Water Treatment

In this segment, our students discuss the results of their engineering design challenge and we hear from special guest Stan Brinkley, with the Cobb County Marietta Water Authority.

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