Module: Influences of Molecular Structure
DCI: PS2.B (C) Attraction and repulsion between electric charges at
the atomic scale explain the structure, properties, and transformations of
matter, as well as the contact forces between material objects.
PE: HS-PS2-6 Communicate scientific and technical information about
why the molecular-level structure is important in the functioning of designed
materials.
[Clarification
Statement: Emphasis is on the attractive and repulsive forces that determine
the functioning of the material. Examples could include why electrically
conductive materials are often made of metal, flexible but durable materials
are made up of long chained molecules, and pharmaceuticals are designed to
interact with specific receptors.] [Assessment Boundary: Assessment is limited
to provided molecular structures of specific designed materials.]
The basic content of the standard is as follows.
- The properties of matter can often be explained by the attractive and repulsive forces of electrical charges.
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