No, both the hemispheres experience the sun, no matter what. The poles, however, vary during seasonal changes.
The sun only lights one half of the Earth at a time.
When the southern hemisphere is tilted toward the Sun it is summer there and winter in the northern hemisphere. The Earth's axis is on a tilt relative to the Sun. This means that during the year as it follows its regular orbit around the Sun, for a period one hemisphere is closer to the Sun than the other. This is what creates the seasons we have on Earth. When one hemisphere is closer to the Sun more heat is felt there. This is known as "summer". This is similar to how holding your hand closer to a flame will make your hand feel warmer. Clearly, at the time one hemisphere is closer to our Sun, the other hemisphere is further away, meaning it is in "winter". When the two hemispheres are equidistant from the Sun then it is spring in one and autumn (fall - if you're American) in the other.
It is winter in the northern hemisphere when the southern hemisphere tilts toward the sun. Interestingly enough, the Earth is closer to the Sun at that time! The (slight - 0.0167 ) eccentricity of the Earths orbit puts this planet at aphelion (furthest from the Sun) in the beginning of July and perihelion (closest to the Sun) in the beginning of January. This is one of the many factors that makes the Southern hemisphere seasons more extreme than those of the northern hemisphere.
It is winter in the northern hemisphere when the southern hemisphere tilts toward the sun. Interestingly enough, the Earth is closer to the Sun at that time! The (slight - 0.0167 ) eccentricity of the Earths orbit puts this planet at aphelion (furthest from the Sun) in the beginning of July and perihelion (closest to the Sun) in the beginning of January. This is one of the many factors that makes the Southern hemisphere seasons more extreme than those of the northern hemisphere.
At both the winter and summer solstices, the Earth is tilted towards the sun. What differs is which hemisphere is tilted towards the sun. In the northern hemisphere at its winter solstice, the southern hemisphere is tilted towards the sun, while the northern hemisphere it tilted away from the sun. In the southern hemisphere at its winter solstice, the northern hemisphere is tilted towards the sun, while the southern hemisphere it tilted towards the sun. When it is the winter solstice in one hemisphere, it is the summer solstice is in the other hemisphere. For a winter solstice, that particular hemisphere is tilted away from the sun.
The Earth is close to a sphere so there is but one single point on the sphere that has the Sun directly overhead at any one time. When this point is in the Northern hemisphere (roughly from the 21 of March to the 20 of September) the Southern Hemisphere is less directly hit by the rays of the Sun and experiences somewhat cooler seasons than when the rays of the Sun strike more vertically.
The Earth is close to a sphere so there is but one single point on the sphere that has the Sun directly overhead at any one time. When this point is in the Northern hemisphere (roughly from the 21 of March to the 20 of September) the Southern hemisphere is less directly hit by the rays of the Sun and experiences somewhat cooler seasons than when the rays of the Sun strike more vertically.
No. The Northern Hemisphere (which the United States is in) axial tilt is the farthest from our Sun, when it is winter in the Northern Hemisphere. During that same time, the Southern Hemisphere is tilted toward the sun, and it is summer time in the Southern Hemisphere.
Whatever is tilted toward the sun has summer. So the southern hemisphere will have winter.
When the northern hemisphere is in winter, the southern hemisphere is in summer.
It is at that time, when the southern hemisphere is tilted toward the sun, that the northern hemisphere is tilted away from the sun.
The earth is on an angle of 23.5 degrees. So one end of the planet is closer to the sun then the other. During the northern hemisphere's summer its is closest to the sun and the southern hemisphere is furthest from the sun.