HELP PLEASE Why doesn't the Earth's shadow fall on the Moon during the Full Moon phase?
The Moon's orbit isn't flat, it's tilted
The Earth is much larger than the Moon
The Moon is much smaller than Earth.
The Moon's orbit is flat and isn't tilted

The plane of the Moon's orbit around the Earth is tilted by 5° with respect to the plane of the Earth's orbit around the Sun, the ecliptic. This tilt prevents an eclipse from occurring at every new and full moon. In a lunar eclipse, the observer watches the Earth's shadow fall on the Moon.

Because there is no light in space so there is no shadow