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Performance expectations in this DCI help high-school students formulate an answer to the question,“How can one explain the structure and properties of matter?” Students are expected to develop understanding of the substructure of atoms and provide more mechanistic explanations of the properties of substances. Students are able to use the periodic table as a tool to explain and predict the properties of elements. Phenomena involving nuclei are also important to understand, as they explain the formation and abundance of the elements, radioactivity, the release of energy from the Sun and other stars, and generation of nuclear power.

NGSS Disciplinary Core Idea:

Structure and Properties of Matter

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HS-PS1-1

HS-PS1-3

Atom Article
Boiling point Article
Cohesion (physics) Article
First direct measurement of van der Waals force Briefing
GraphiteArticle
Intermolecular forces Article
Ion Article
Melting pointArticle
Molecule Article
Surface tension Article
Vapor pressure Article

HS-PS1-8

Alpha, Beta, and Gamma Rays Animation
Chain reaction Animation
Half-life Article
Nuclear fission Article
Nuclear fusion Article
Nuclear reaction Article
Radioactivity Article

HS-PS2-6

Cohesion (physics) Article
Electrical conductivity of metals Article
Intermolecular forces Article
Materials science and engineering Article
Molecular mechanics Article
Molecular simulation Article
Polymer Article
Solid-state chemistry Article
Solid-state physics Article

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