As the Earth rotates on its axis, its shadow moves depending on the location of the sun and the tilt of the Earth. Sun Over occurs when the Earth's surface and the Sun (at noon) meet at a 90-degree angle. On March 21 or 22, the Sun above us reaches the equator. The Northern Hemisphere experiences the spring equinox and the Southern Hemisphere experiences the autumnal equinox. Meanwhile, days and nights last the same length everywhere on Earth, and both hemispheres receive equal amounts of solar radiation. After the equinox, days become longer in the Northern Hemisphere as the season transitions into spring, and shorter in the Southern Hemisphere as it transitions into fall. Say no to plagiarism. Get a custom essay on “Why Violent Video Games Should Not Be Banned”?Get Original Essay On June 21 or 22, or the summer solstice, the Sun hits the Tropic of Cancer directly. The Northern Hemisphere is tilted toward the Sun during its summer solstice, and the Southern Hemisphere is tilted toward the Sun during its winter solstice. During the solstice, the days are longest in the North and shortest in the South, with 24 hours of daylight at the North Pole and 24 hours of darkness at the South Pole. When the Sun returns to the equator on September 22 or 23, the Northern Hemisphere is at the autumnal equinox and the Southern Hemisphere is at the spring. As in March, the hemispheres receive similar amounts of solar radiation, and the length of day and night is the same everywhere on Earth. However, after the equinox, the days in the North shorten and the days in the South lengthen. For the winter solstice, December 21 or 22, the overhead Sun directly strikes the Tropic of Capricorn. Now the northern hemisphere is tilted away from the Sun and the southern hemisphere is tilted toward the Sun, pushing them toward winter and summer, respectively. Days are longest in the South and shortest in the North, with 24 hours of darkness in the Arctic Circle (in the North) and 24 hours of daylight in the Antarctic Circle (in the South). Essentially, as the angle of the Sun and the tilt of the Earth change, the hemispheres experience seasons. The sunlight each hemisphere receives depends on whether it is tilted away from the Sun, toward the Sun, or directly toward the equator. Keep in mind: this is just a sample. Get a personalized paper now from our expert writers. Get a custom essay paper