UP:SC15.ESS.2

Vocabulary

  • electromagnetic spectrum
  • spectral lines
  • emission spectra
  • absorption spectra
  • redshift
  • blueshift
  • Hubble's Law
  • scientific theory
  • evidence
  • cosmology
  • hot Big Bang
  • Steady State
  • cosmic microwave background radiation
  • Big Bang nucleosynthesis
  • dark matter
  • dark energy

Knowledge

Students know:
  • The stars' light spectra and brightness may be used to identify compositional elements of stars, their movements, and their distances from Earth.
  • Energy cannot be created or destroyed-only moved between one place and another place.

Skills

Students are able to:
  • Develop a claim based on valid and reliable evidence obtained from a variety of sources.
  • Identify and describe evidence supporting the claim.
  • Use examples to construct oral and/or written logical arguments.

Understanding

Students understand that:
  • A scientific theory is a substantiated explanation of some aspect of the natural world. Based on a body of facts that have been repeatedly confirmed through observation and experiment and the science community validates each theory before it is accepted.
  • If new evidence is discovered that the theory does not accommodate, the theory is generally modified in light of this new evidence.
  • The universe is a vast single system in which basic laws are consistent.

Scientific and Engineering Practices

Engaging in Argument from Evidence

Crosscutting Concepts

Stability and Change
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