the relative size of things

when the Moon is completely dark

the shape of the illuminated part of the Moon as it appears from Earth

an object, diagram, or computer program that helps us understand something by making it simpler or easier to see

the star that is the main source of light at the center of our solar system

he nearly circular path a smaller object (like the Moon) travels around a larger object (like Earth)

something we observe to be similar over and over again

Best ice cream flavor Maybe

to shine light on an object and make it visible

Chicken