Creativity

Can you complete the 'Moonsaic'?

You have probably seen the Moon in the sky but have you ever studied it in detail? 

The Moon is the brightest object in the night sky when its whole face is showing. This only happens at full Moon. So why isn't it always a full Moon? 

Is gravity the same everywhere? Experiment with how the ball reacts in each of the Solar System locations by dropping or throwing the ball. How similar or different is each location to Earth?