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Because it is full of holes and air spaces. This is because it forms while bubbles of gas are trapped in quick-cooling lava.
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∙ 13y ago
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What is the name of an object that has a low density and large volume?
There is no generic name for such objects but I can give you some specific examples:- Pumice Styrofoam Gases The planet Saturn (which if you could do it would float on water).
How do changes in temperature of air affect its density?
if it is high the density is high so if the temperature is low the density is low.
Can a brick float?
Objects denser than water will sink; objects less dense than water will float. Since aluminum metal has a density of around 2.7 grams per cubic centimeter and water has a density of 1.0, a solid block of aluminum would sink.
Does air have a very low density?
Compared to liquids and solids, yes a very low density.
What stone float in water?
Pumice, a volcanic stone with tiny air bubbles, is the only stone that floats in water.Pumice.Pumice, a volcanic porous stone, is lighter than water of equal volume because of all of the air bubbles in it, so it floats.
What stone can float on water?
Pumice stones will, these are low density rocks formed by volcanoes
Name an extrusive rock with a very low density?
Pumice is an extrusive igneous rock with a density less than that of water.
Which type of stone is lighter than water?
pumice or any other low density rock
Which of the following has the lowest density?
air
What is mt vesuvius composition?
Mount Vesuvius' magma is comprised mostly of pumice stone. It is low density molten rock that erupts at a high temperature.
What rock floats on water?
Floating rocks: pumice. Non-floating rocks: all but pumice. Pumice can float on water because its density is so low, due to trapped bubbles of air which formed during its solidification from lava.
What is mount etna magma composition?
Mount Vesuvius' magma is comprised mostly of pumice stone. It is low density molten rock that erupts at a high temperature.
Does pumice floats in water?
Porous lava rock is called pumice. If placed in water, it would float as it possesses a density that is less than water.
What type of rock will float on water?
Any with a density less than the fluid into which it is placed. Pumice is a volcanic rock that will sometimes float on water.pumice
What is pumice and what causes pumice to be light enough to float on water?
Pumice has an extremely low density due to its vesicular nature. Obsidian is not characteristically vesicular like pumice and its density is greater. Therefore, in equally sized samples pumice is lighter.
What is the density of a 225 gram sample occupied 236.6 mL what is the density os pumice?
0,951 g/ml
How do gabbro and pumice differ in texture and density?
have differnt made up marerials
