why the earth moves around the sun n how?
374997
The sun is the larger object. So, it has more gravity. The earth moves around the sun and centrigfugal force keeps it going around rather than crashing into it. It continues to move because there is no gravity or atmosphere in space to slow it down. Once a spaceship or rocket leaves the earth's atmosphere and pull, it keeps going even without its rockets on. It just keeps going in the direction it was pointed. \n\nTo learn more, see http://spaceplace.nasa.gov/en/kids/phonedrmarc/2002_july.shtml
221678
the earth doesnt fly towards the sun cuz there r more than one force acting upon it...theres the gravitational pull the sun has on the earth as well as the fact that the moon wants to remain in motion in the same direction.this applies to newtons 1rd law of motion(his first law is that an object will remain at rest until acted upon by another object or it will remain in motion until acted upon by an object..in other words,its inertia)...since the earth has both a side movement and the gravitational pull from the sun...those 2 forces cause the earth to orbit around the sun and not fly towards it or away from it. if u dont understand this...email me (pulga0888@yahoo.com) and ill try to explain it better..........now for ur second question...wat makes the earth spin...the earth spins because of the rotation of the magna and stuff in the earths core..well in the convection zone...im pretty sure thats the answer to the second question but im not positive...if u want me to check then email me.
438984
Minimally, 2.  Depending on how simplisticly we are thinking about the problem.\n\n1) the Earth rotates around it's axis\n2) the Earth revolves (orbits) around the sun\nhttp://www.ucolick.org/~bolte/AY4_00/week1/motionsC.html\n\nMaximally: ???\n3) the Earth and Moon really form a system together which revolves around the sun so there is the wobble attributable to that interaction.\nhttp://search.yahoo.com/search?ei=utf-8&fr=slv1-&p=earth%20moon%20system%20motion\n\n4) the Earth precesses about it's axis changing the tilt relative to the orbital plane\nhttp://csep10.phys.utk.edu/astr161/lect/time/precession.html\n\n5-14) Perturbations in Earth's motion due to gravitational pull from other planets (Mercury, Venus, Mars, Jupiter, Saturn, Neptune, Pluto, UB313).\n\n15) Solar system motion through the Milky Way galaxy which brings the Earth along with it\n\n16) Motion of Galaxy through the universe bringing along the solar system and earth.\n\n17) Changes in motion due to sloshing of the oceans and earthquakes.\n\n...
1187272
because we go around the sun,and spin at the same time.
1081261
As the earth rotates on its axis, the atmosphere is rotating with it.  Otherwise there'd be a constant wind, like in a fast-moving car on a still day,  as we were dragged through the atmosphere at the speed of the earth's rotation, yes?   And all winds would blow from east to west, and we know that's not the case.  \n\nBut the rotation of the earth does have an important effect on the weather.   A strange thing about rotating a globe is that a point on the equator has to move much faster to make it all the way around the waist of the globe in 24 hours than a point up around the Arctic circle has to move to make it all the way around the Arctic circle in 24 hours. (you can test this with a piece of string: The length of a piece of string wrapped around a globe at the level of New York is much shorter than a piece of string wrapped around the globe at the equator, right?)\n\n  You know that, looking at the globe with the sun behind your back, as the world turns, the continents pass off to the right (the east). New York crosses into the sun at dawn while San Francisco is still on the dark side of the globe.  Because the surface of the earth at the  equator is rotating faster than the surface of the earth 500 miles north of the equator, so is the air above it.  But the air above the equator isn't attached to the air above a point 500 miles north.  So the faster-moving and slower-moving air rub past each other.  This forms a kind of bow wave at the equator, like the wave that peels back from the bow of a boat as it moves through the water. Think of a big arrow pointing to the right and wrapped around  the equator.  So the air peels  back to either side of the equator, and forms a swirling current--curling counter-clockwise above the equator and clockwise below it.  This is called the coriolis wind.  It's one important factor in where weather comes from.
1069004
For the most part, the atmosphere moves along with the surface of the earth. On the other hand, winds going in any direction tend to grind down mountain peaks.\n\nHowever, if the Earth were not fairly close to round, then the molten lava inside the earth would rupture the crust and deform the earth into a round shape. The main reason the Earth is round is gravity, not wind.
505384
We can see the sun rise and set, and it would be impossible for the sun to revolve around the earth because of the huge difference in math, so the only explanation is that the earth is spinning.\n\nIn reply to the first two replys, the sun is not the center of the universe, it is the center of the solar system. Also, because of the sun's gravity, we REVOLVE, but that has nothing to do with rotation. MOMENTUM is what causes us to not feel the spin/movement, not inertia.
520703
We orbit the sun, and the earth rotates. Have the children walk around you while spinning them selves. They can't always see you. The moon rotates around the earth and the sun. so have another child walk around the spinning child. The 'earth' child will see the 'moon' child more than you.
798886
Gravity keeps the celestial bodies from crashing into each other, along with their velocities, vectors and other planetary orbital forces.  A simple explanation is that the sun is a moving target, travelling around the Milky Way Galaxy.  The gravity pulls the earth into the sun, but the earth 'misses' the sun so to speak.  The result is an elliptical orbit.  The velocity of the earth is not great enough to escape the sun's gravity.
1037575
The Earth is about 12,750 kilometers (km) in diameter.\n\nHere are some answers to some more of your questions:\n\nHow old is the earth?\nThe earth is about 4.5 billion years old. That is 45,000,000,000 years. The sun, the moon, the planets, and nearly everything in our solar system was formed at the same time, so they are all 4.5 billion years old. \nHow does the earth spin?\nIf you look around at planets, stars, and galaxies in the universe you will see that EVERYTHING spins! This is because planets like Earth (and stars and galaxies) formed from a large cloud of gas and dust. As gravity pulled the cloud together, any little bit of spin gets multiplied. This is known to scientists as the Conservation of Angular Momentum. You can try this out yourself. Find a chair that spins easily and sit on it. Start out by spinning with your arms outstretched, then pull them in to your body. Did you notice that the chair started to spin faster when you pulled your arms in? The same thing happens as the planet forms — as its gas, dust, and rocks fall together the planet spins up faster and faster. Later other things can affect the spin. Earth and the moon pull on each other, affecting both their spins and the orbit of the moon. It's quite a dance! \n\nHow fast is the earth spinning and why can't we feel it spin?\nThe circumference of (distance around) the earth is 2 x PI x radius, which turns out to be about 24,000 miles. Since the earth turns once per day (or 24 hours), that is 1,000 miles per hour! We don't feel that because everything else is moving with us and because the motion is very, very smooth. It's kind of like sitting in a car and reading a book or playing a game. If the car is going very smoothly, with no stops or bumps, and you don't look out the window, you wouldn't know you were moving. The only reason we know the earth is turning is because the sun and stars move across the sky. \n\nWhat is the exact tilt of the earth? How much does it change throughout the year?\nThe tilt of the earth is 23.45 degrees. This is measured as the tilt of the earth's equator compared to its orbit around the sun. The amount of the tilt doesn't change with time, but the direction that the earth's poles are pointed does. This is called precession. It is just like the wobbling of a spinning top. The direction that the North Pole (and South Pole) is pointed moves in a circle in the sky very slowly, completing each circle once every 26,000 years. \n\nWhy does only Earth have so much oxygen?\nThat's a very good question — no other planet in the solar system has so much oxygen. The answer is — life! Earth did not originally have a lot of free oxygen in the atmosphere. The oxygen was mostly combined with other elements to make carbon dioxide, water, or in rocks. But as early life evolved, especially plants, well they give off oxygen. So the reason we have so much oxygen in our atmosphere — and we are here and can breathe it! — is due to plant life on the earth! \n\nHow can rockets get through the earth's atmosphere, but comets can't?\nObjects hitting our atmosphere usually burn up because they are hitting it so fast. Usually they are moving at hundreds or thousands of miles per second. Rockets and the shuttle move more slowly (although pretty fast compared to cars on the highway). Here's a comparison. If you jump into a swimming pool from the high board and hit the water really hard, it stings and you make a big splash. But if you step into the water slowly, it feels fine and you make only a little ripple. The same thing happens to meteors — they hit the earth's atmosphere real hard and go splat! \n\nIf a comet hit the earth, what would happen?\nIt could cause a big explosion. The nucleus of a comet is thought to be a mile or two in size. The nucleus is made up of ice and rock, but we aren't sure how solid it is. Something that big hitting the earth from space would be bigger than
66192
It is due to the slight orbital eccentricity of Earth rotation around the Sun. Since the orbit is not perfectly circular the distance between the two bodies varies.
161923
Earth and all the other planets in the solar system revolve, or orbit, around the Sun due to the force of gravitation. The Earth travels at a velocity of about 107,000 km/h (about 67,000 mph) as it orbits the Sun.
830517
The moon goes around the earth faster than we go around the sun...
611229
Due to the direction of rotation of the earth, remember the sun is not actually moving at all we are rotation and rotating around the sun (days, years).  Galilao got into a lot of trouble with the vatican to teach us this :)
1147738
Well, the earth revolves around the sun once a year, the earth rotates on its axis once a day, and the moon revolves around the earth about once a month.  Most of the apparent movement of the moon and sun across the sky is due to the earth rotating.  Some of the movement of the moon is due to the moon revolving around the earth.  But it takes about 28 days for the moon to travel around the earth, and it only take one day for the earth to rotate on it's axis, so you see the relative effect.
370975
no one can prove the sun revolves around the earth because the sun doesn't orbit the earth.  the following link may help. http://spaceplace.nasa.gov/en/kids/barycntr.shtml
991215
Because the sun has a gravitational pull on all objects that rotate around it. The earth, like all the other planets revolving around the sun, is pulled toward it to a certain extent, which keeps the earth from floating away into outer space.