P7 - Observing the Universes

Covers Unit 2 of OCR 21st Century Science's P7 module.

Includes:

- Solar/Sidereal Days

- Solar/Lunar Eclipses

- Phases of the Moon

- Parallax angles

- Retrograde Motion

- Red Shift

- Lifecycle of Stars

- The Curtis-Shapely Debate

- Cepheid Variables

- Hubble Constant