SC15.ESS.2
Engage in argument from evidence to compare various theories for the formation and changing nature of the universe and our solar system (e.g., Big Bang Theory, Hubble’s law, steady state theory, light spectra, motion of distant galaxies, composition of matter in the universe).
Engage in argument from evidence to compare various theories for the formation and changing nature of the universe and our solar system (e.g., Big Bang Theory, Hubble’s law, steady state theory, light spectra, motion of distant galaxies, composition of matter in the universe).
Unpacked Content
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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
