Seasons happen because earths axis is tilted at an angle of about 234 degrees and different parts of earth receive more solar energy than others earths orbit around the sun is elliptical because of earths axial tilt obliquity our planet orbits the sun on a slant which means different areas of earth point toward or away from the sun at . There is a different reason for earths seasons earths axis is an imaginary pole going right through the center of earth from top to bottom earth spins around this pole making one complete turn each day. Explain to students that every planet in our solar system has seasons but the seasons that occur on other planets are extremely different from the traditional spring summer autumn and winter that we experience on earth remind students that the two reasons seasons occur are the tilt of a planets axis and its orbit around the sun. The cycle of seasons is caused by earths tilt toward the sun the planet rotates around an invisible axis at different times during the year the northern or southern axis is closer to the sun
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