Today I want you to explain what causes the seasons to change on planet earth. Take pride in this assignment. Dr. Howard Gardener asks each Harvard graduate this exact question on graduation day & only 5% get this right. Please post this answer as a comment underneath this post, so simply click on "comment" (look lower right hand side underneath this post), and enter your answer.
Are you smarter than a Harvard Grad? Fear not ... even if you don't get this right it still places you on par with 95% of Harvard's graduating class.
Mr. Coleman
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The Earth's orbit is in the shape of an ellipse, so that sometimes the Earth is a little bit closer to the Sun than at other times.If winter occured because the Earth was far away from the Sun, everyplace on the Earth would be cold at the same time.Summer in the northern hemisphere occurs at the same time as winter in the south, and vice-versa. It turns out that the Earth's orbit is nearly perfectly circular, and the difference between its closest point and its furthest point is very small. In fact, the Earth is furthest away from the Sun in June when it is summer in the northern hemisphere.Earth's unique atmosphere and its distance from the Sun work together to make Earth the right temperature to create the seasons.
Seasons change because earth get father away from the sun so if it gets close 2 the earth the sun gets hot if it go futher away it gets cold so the seasons has 2 change!
The earth has season because it is titled on its axis. As the sun shines on the earth, it shines more directly on the northern hemisphere in June (summer), and more directly on the southern hemisphere in December (winter). That's why the seasons are different in each hemisphere. In the spring and fall, the sun shines straight on the equator, giving both hemispheres equal warming.
[erica]
The earth is slightly tilted on its axis. As the sun shines on the earth, it shines more directly on the northern hemisphere in June (summer), and more directly on the southern hemisphere in December (winter). That's why the seasons are different in each hemisphere. In the spring and fall, the sun shines straight on the equator, giving both hemispheres equal warming.
This is Tiarra M.
The seasons change because of its distance from the sun. The closer the sun is the hotter the season is. The further the earth is from the sun, the cooler the season. So thats why seasons change in my own words.
The earth is slightly tilted on its axis. As the sun shines on the earth, it shines more directly on the northern hemisphere in June (summer), and more directly on the southern hemisphere in December (winter). That's why the seasons are different in each hemisphere. In the spring and fall, the sun shines straight on the equator, giving both hemispheres equal warming
gabrielle b.
The seasons change because the Earth's axis is tilted as the Earth orbits around the sun.
It turns out that the elliptical orbit of the Earth has little effect on the seasons. Instead, it is the 23.45-degree tilt of the planet's rotational axis that causes us to have winter and summer.
The earth is slightly tilted on its axis. As the sun shines on the earth, it shines more directly on the northern hemisphere in June (summer), and more directly on the southern hemisphere in December (winter). That's why the seasons are different in each hemisphere. In the spring and fall, the sun shines straight on the equator, giving both hemispheres equal warming.
The movement of the earth about the sun, coupled with the fact that its axis of rotation is inclined to the plane of its rotation, results in the change of the seasons.
The seasons change because of tilt of Earth on its axis. At different times of the year, the suns ray hit different parts of the globe more directly. The angle of the Earth's axis tilts the Northern Hemisphere towards the sun during the summer and towards the Southern Hemisphere during the winter. Without the tilt of the earth's axis, we wouldn't have seasons.
It turns out that the elliptical orbit of the Earth has little effect on the seasons. Instead, it is the 23.45-degree tilt of the planet's rotational axis that causes us to have winter and summer.
The Sun is our main source of heat, and since these changes are the same every year, it surely has something to do with the movement of the Earth around the Sun. If we get closer to a fire, we get hotter. Could it be then that the Earth gets closer to the Sun during Summer, and farther during Winter? This idea seems at first to have some merit, until we remember that the seasons get reversed when we cross the equator: when it is Summer in the northern hemisphere, it is Winter in the southern one, and vice versa. And surely Argentina is at the same distance from the Sun as the USA!
4 words-earth tilts on axis.
in the winter the northern hemisphere is turned away from the sun and the southern is turned in but because of rotation of the earth when it gets to the other side of its elliptical rotation it will be the opposite resulting in summer.
Hi Ian Troeter
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