HS-ESS1-2 Evidence Statement
see.isbscience.org/ngss/hs-ess1-2-evidence-statement/Earth and Space Science: Earth's Place in the Universe - Evidence Statement 2
HS-ESS1-2: Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe.
[Clarification Statement: Emphasis is on the astronomical evidence of the red shift of light from galaxies as an indication that the universe is currently expanding, the cosmic microwave background as the remnant radiation from the Big Bang, and the observed composition of ordinary matter of the universe, primarily found in stars and interstellar gases (from the spectra of electromagnetic radiation from stars), which matches that predicted by the Big Bang theory (3/4 hydrogen and 1/4 helium).]
Source: http://www.nextgenscience.org/
For more specific information, including ways this performance expectation can achieve three-dimensional learning, please see this NGSS Evidence Statement.
