The Earth moves in two main ways: it rotates on its own axis and revolves around the Sun. Rotation is the spinning of Earth from West to East around an imaginary line called the axis, which causes day and night as different parts of the Earth face towards or away from the Sun. One full rotation takes 24 hours, defining one day. The revolution is Earth’s orbit around the Sun, taking about 365 days to complete one full trip, which makes a year. The Earth’s axis is tilted, causing different seasons as different hemispheres receive varying amounts of sunlight during its revolution. This tilt results in longer days and warmer summers in one hemisphere, while the other experiences shorter days and colder winters. Shadows also change length and direction throughout the day due to Earth’s rotation.