The Earth orbits the Sun in an elliptical path, completing one full revolution approximately every 365.25 days. This movement is due to the gravitational pull of the Sun, which keeps the Earth and other planets in our solar system in their respective orbits. As the Earth travels around the Sun, it also rotates on its axis, which takes about 24 hours. This rotation causes the cycle of day and night. The tilt of the Earth's axis, combined with its orbit, leads to the changing seasons throughout the year.