What is the size of a small and large crater?

Answer 1

The earth has an atmosphere which can burn up any Rocks or Comets (anything from space ) that enter .. so less gets to the surface.. :D the moon does not have this ..

The earth has wind and rain and plants to break up and hide the craters. No wind on the moon means the craters stay perfect for thousands of years, or until another crater covers it. And there used to be more space rocks in this neighbourhood in the old days.

Answer 2

They range in size from a dimple (about the size of a thimble) to thousands of miles across. Most of the craters on earth are fairly large, only because the smaller ones would be erased through erosion, subduction and orogeny.

If you ever thrown a rock into sand or soft dirt, you have formed an impact crater. Ever throw a snowball into the snow? It makes a crater. Any grain of sand striking the lunar surface will leave a small depression. Grains of sand that reach earth's atmosphere burn up before striking its surface, making streaks of light across the sky known as meteors.

Answer 3

The moon has more craters than the Earth does, because a lack of atmosphere on the moon tends to preserve craters much better than the ones here on Earth are preserved. In addition we are in a position to see half of the surface of the moon all at once, whereas we are too close to the Earth to see more than a tiny fraction of its surface at a given time - and even if we go up into space and look back at the Earth, most of the surface is covered by clouds, at any given time. The moon is much easier to observe.

Answer 4

There are craters on earth. There are far fewer than on the moon, and some of them are much less obvious. The moon has no atmosphere to speak of, and so erosion of crater evidence has not had an impact on the moon's surface. The earth is and always has been geologically active, with a constant movement of the tectonic plates. We also have a rich and very active atmosphere, huge oceans, and very lively weather. Most evidence of craters is wiped away by these processes. The moon and the outer planets, particularly the giant Jupiter, have helped to shield us from some impacts, but they have happened in the past and there is every reason to believe that they will happen again.

Answer 5

All sizes, from hundreds of MILES across to hundreds of INCHES across. And probably smaller than that. There are craters overlapping craters overlapping other craters. Craters in craters, chains of craters, more craters than you can imagine.

On Earth, a falling rock makes a crater. Weather, wind, and earthquakes slowly - over thousands or millions of years - erode the crater. Some craters are subducted, folded into the Earth as the tectonic plates shift. Over millions of years, they all vanish. The Meteor Crater in Arizona will eventually disappear, as wind blows dust and dirt into the crater, and rain erodes the walls.

There are none of these weathering elements present on the Moon, so all the craters carved out of the Moon for the last three billion years or so are still there.

Answer 6

they look like big indentions

Answer 7

Craters are different sizes because different size meteors hit them so they make different size holes.

Answer 8

The size, velocity, angle of approach and rigidity of the impacting object, as well as the terrain which is impacted.

Answer 9

The size of a crater depends on the mass and speed of the meteorites that caused them.

Answer 10

The more kinetic energy a rock has, the bigger the crater will be. Kinetic energy depends on the mass and on the velocity of the impactor. The nature of the target material is also a factor.