why are north and south poles always frozen?

Answer 1

None of the answers given so far can be right. The Earth doesn't spin bolt-upright, the rotational axis wobbles over time (precession). Both poles alternately spend 6 months of the year in continuous sunlight with little or no darkness, and then 6 months in almost perpetual darkness, so it cannot be just due to the amount of sunlight available.
I seem to remember reading an explanation for this that relates to the Earth's magnetic field channelling solar radiation away from the polar regions toward the equator. Presumably then the poles are colder because the magnetic poles happen to be relatively close to the rotational poles and the radiation is being channelled away from these areas ?

Answer 2

I challenge you on the validity of your statement. Throughout Geologic history there is little evidence of ice on Earth, even in the polar regions. This leads some geo-scientists to believed that we are still in the grips of the ice ages. Glaciation, such as that seen during the Pleistocene cannot be explained easily, but given a short time (geologically speaking), the Earth will be up to its normal temperature and the poles will not be frozen.

Answer 3

Like a lot of places it is where the Sun doesn't shine much. The Sun is not shining directly onto the poles as it is very low in relation.
To demonstrate get a lamp and put your hand horizontally directly over the bulb, don't touch it though, and you will feel the heat from it. Now move your hand down to the side of the bulb but keep it horizontal as it was over the bulb and the radiated heat from it is considerably less.
Hope this helps

Answer 4

Because the furthermost points where the sun shines directly is on the tropic circles and the rays that hit earth on an angle don't have the same heat. So the average temperatures stay way below zero and the polar ices won't melt.

Answer 5

Actually, they are not (if you mean the magnetic poles). In fact, geologists have proven, through their observation of the regular reversal in metallic grains in certain mineral deposits, that Earth's magnetic field reverses itself every 100,000 years or so. We are due for another reversal.

Earth's magnetic pole has recently been confirmed to be moving away from its current location in Northern Canada towards Russia.

Answer 6

Because they are so far away from the sun. Its to do with the axle the earth is on. The centre is nearer to the sun and the poles are the furtherest away and so remain freezing.

Answer 7

Because they are on the extreme points of Earth where sunlight does'nt reach so its frozen due to lack of sunlight

Answer 8

They are the parts of the earth that faces the sun the least amount of time. The magnetic pull keeps the earth in that status.
It is reversing according to PBS

Answer 9

Because the sun does not hit there very much. Sunlight is mainly in the equator.

Answer 10

Its due to the angle of the sun to the earth................. for example if you face the sun (in summer) your face gets warmer than anywhere else on your head..........and because the earth is spinning is the reason why the middle stays warm.