The Sun is made up of hot clouds of gases, but the Earth and the moon are simply made up of rocks. The moon revolves around the Earth, the Earth revolves around the Sun and the Sun revolves around its own axis. The earth is a planet, the Sun is a star and the moon is a natural satellite.
The Sun doesn't change its shape but the moon continuously changes its shape( means it appears to be changing shapes).
Both the moon and the sun possess gravity, and both exert this gravitational force on the earth. The sun's gravity captured Earth so that our planet revolves around the sun. The moon's gravity, which is only a fraction of Earth's, is still strong enough to pull water, creating tides.
