What causes the phase of the Moon
to change?

As the moon orbits the Earth and rotates, light from the Sun strikes it in different areas, changing the extent to which it is visible on earth. This interplay between the earth, moon and light from the sun is what causes the phases of the moon.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.