The extrusive volcanic rock pumice can float on water. Other extrusive volcanic rocks are not so lucky.
Pumice stones will, these are low density rocks formed by volcanoes
Rocks are generally denser than water, so they sink instead of floating. The buoyant force acting on an object in water is not sufficient to counterbalance the weight of most rocks, causing them to sink. Additionally, rocks are not porous enough to trap enough air to make them float.
No rocks float, irrespective of color with the exception of pumice, a solidified lava froth.
A rock could float if its density is less than that of water, as is the rock pumice, or if it is shaped in a manner that would displace an amount of water to sufficiently cause it to float when carefully placed in water.
Pumice.
rocks, metals ect.
The extrusive volcanic rock pumice can float on water. Other extrusive volcanic rocks are not so lucky.
Because rocks are more dense than water
They play with rocks that float around in the water
Well rocks don't float because they are a solid with no air.
Pumice stones will, these are low density rocks formed by volcanoes
too dense to float
Pumice rocks have been known to float across oceans.
you can put the mixture in water, the wood will float and the rocks will sink.
Pumice is a rock that will often float. It has so many air bubbles in the rock that it is buoyant, especially in salt water.
Some objects that do not float on water include rocks, metals such as iron and lead, and most types of glass. These items are denser than water, causing them to sink when placed in water.