Assessment Boundary - S.5.ESS.1.1.AB:
Assessment is limited to relative distances, not sizes, of stars. Assessment does not include other factors that affect apparent brightness (such as stellar masses, age, stage).

Science and Engineering Practices - 3-5.SEP7.4:
Support an argument with evidence, data, or a model.

Disciplinary Core Ideas - S.5.ESS.1.1.DCI:
ESS1.A: The Universe and its Stars •The sun is a star that appears larger and brighter than other stars because it is closer. Stars range greatly in their distance from Earth.

Crosscutting Concepts - CC7.2:
Natural objects exist from the very small to the immensely large.