Curious adults and beginners · Name each phase from its lit shape, drag the Moon to the spot in its orbit that gives the requested phase, then answer questions about when each phase rises and sets.
Drag the Moon around its orbit and match the lit shape Earth sees to the eight phases, showing that phases come from the Sun-Earth-Moon angle.
怎么玩
Name each phase from its lit shape, drag the Moon to the spot in its orbit that gives the requested phase, then answer questions about when each phase rises and sets.