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Pumice is a porous volcanic rock with a density less than the density of water. Pumice is created when foamy textured lava is ejected from a volcano and rapidly cooled.

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โˆ™ 2014-09-17 16:45:47
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Q: What is the name of the porous lava rock with a density less than water?
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What is the name of a porous lava rock with the density less than water?

Pumice.


If the above porous lava rock was placed in water what would happen?

Porous lava rock is called pumice. If placed in water, it would float as it possesses a density that is less than water.


If the porous lava rock gravel was placed in water what would happen?

Pumice is a porous rock that can float on water. It's density is less tham 1g per cm.


What is the name of a porous rock with the density less than water?

Pumice is porous and lighter than water.


Can lava rocks be light in weight?

The weight of a sample of lava can be very heavy (dense), or it can be porous, such as pumice. The rock itself is heavier than water, but if there are trapped air spaces with the rock, the average density can be less than that of water (it could float).


What is the relative density of solid lava and liquid lava?

Liquid lava would have less density than its solidified counterpart.


What happens to an objects density when it obsorbs water?

If the object's original density is less than water (sponge, for example) - the density will increase. If the object's original density is greater than that of water (though I cannot think of anything that fits that category that is porous enough to absorb water), the density will decrease.


Is the density of steam more or less than the density of water?

The density of steam is less than the density of water.


How are mass and volume related to the sinking and floating of an object?

An object will float - on water for example - if its density is less than the density of water. Density = mass / volume.An object will float - on water for example - if its density is less than the density of water. Density = mass / volume.An object will float - on water for example - if its density is less than the density of water. Density = mass / volume.An object will float - on water for example - if its density is less than the density of water. Density = mass / volume.


Which planet has a density that is less than that of water?

Saturn has a density that is less than that of water.


What is the only rock that has less density in water?

The density of an object is constant, therefore, no rock can have less density in water.


When you compare the density of water or air with another object how can you tell which has the lower or higher density?

-- If the object floats in water, then its density is less than the density of water. -- If the object sinks in water, then its density is more than the density of water. -- If the object floats in air, then its density is less than the density of air. -- If the object sinks in air, then its density is less than the density of air.


What liquid has a density less than water?

Cooking oil has a density less than water.


Which has less density a cork or water?

A cork is less denser than water because cork is floating on water so it will have less density than water


What is the density of a golfball?

The density of golfball is less then density of water


What is the density of an object that floats in water?

Less than the density of water.


Do you consider terra cotta tiles non porous?

If water droplets penetrate within 3 minutes or less it is considered porous, if water droplets remain on top it is considered non porous..


How do you know if a compound has a density less than 1 gmL?

If it floats in water, it has a density less than water. Density of water is 1.0 g/mL


What is floats in water What density?

An object will float in water if it has LESS density than the water.


If an object floats in water is its density less than that of water?

The "average" density of the object must be less than that of the water displaced.


Does metamorphism make the rock more porous or less porous?

more porous


Can thermocol float?

in water yes its density is less than density of water


How do densities of the things that floatrdbcompare to the density of water?

their density is less than that of water


What can you infer about the density of a material if a sampleof it floats in water?

That the material's density is less than the density of water.


Why does a gallon of oil weigh less than a gallon of water?

The density (mass/volume) of the oil is less than the density of water. It is the same reason that ice floats on the top of water, rather than sinking. The density of frozen water (ice) is less than the density of liquid water.