Yes, a meteoroid can be the size of a pebble. In fact, meteoroids are defined as small rocky or metallic bodies in space, typically ranging in size from a grain of dust to about a meter wide. Therefore, pebbles, which are generally small stones, fall within the size range of meteoroids. When they enter Earth's atmosphere and produce a visible streak of light, they are referred to as meteors.
Nothing but if the pebble is raw it can have changes in size the longer it stays in a liquid.
The smallest type of rock is a pebble. A pebble can be made out of most rocks and is the size of a marble.
Yes
It is not necessarily any of these, as "pebble" describes a grain size and does not say anything about composition. In most cases, though, a pebble is a mixture.
4
6.4 centimeters in diameter.
No.
Pebble larger than clay
A pebble is smaller than gravel. Pebbles are generally between 2-64 millimeters in size, while gravel typically ranges from 2 to 75 millimeters.
The weight of anything depends on what it's made of and how large it is. You'd have to weigh the individual pebble to be certain.
Meteroids' can be very big or very small. There is no exact size of a meteroid.
1 mearter long