What Causes The MoonS Phases?

The Sun Lights Up Only One Half Of The Moon And As The Moon Orbits The Earth We Can Sometimes See The Unlit Side Of The Moon.

The EarthS Shadow Falls On The Moon, Blocking The Sunlight.

The Sun Lights Up Only One Half Of The Moon And As The Sun Orbits The Earth We Can Sometimes See The Unlit Side Of The Moon.

The MoonS Shadow Falls On The Earth, Blocking The Sunlight.