Unit 3 - Origin of the Universe (Big Bang Theory)

• Level 4: In addition to score 3.0 performance, the student demonstrates in-depth inferences and applications that go beyond what was taught.
• Level 3: Students will construct an explanation of the Big Bang theory using astronomical evidence of light spectra, motion of distant galaxies and the composition of matter in the universe. HS-ESS1-2
• Level 2:

A1. Use evidence from a galaxy’s light spectra to determine its relative motion in the universe. (Describe how atoms of each element emit and absorb characteristic frequencies of light. These characteristics allow identification of the presence of an element, even in microscopic quantities)

A2. Make a conclusion about the motion of the universe based on energy (light shift) versus distance relationship.

A3. Describe the existence and implications of cosmic background radiation (energy).

A4. Describe how the distribution of elements (matter) is the same throughout the universe, primarily found in stars and interstellar gasses (from the spectra of electromagnetic radiation from stars)

A5. Describe how conservation of energy and matter support the evidence for the Big Bang Theory.

• Level 1: Student’s performance reflects insufficient progress towards foundational skills and knowledge.