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Floating (on water) happens when the item place in the water is less dense than the water.
The density of the rock called "pumice" is less than that of water so pumice floats.
Pumice is a volcanic rock made form a lava "foam" it is solidified rock froth and therefore is very light.
What else can I help you with?
How can you determined if a rock can float in water?
You can determine if a rock can float by comparing its density to the density of water. If the rock is denser than water, it will sink. If the rock is less dense than water, it will float. This can be tested by placing the rock in a container filled with water and observing its behavior.
Does obsidian rock float?
No, obsidian rock does not float as it is a dense and heavy igneous rock formed from cooled lava. Its high density causes it to sink in water.
Can metamorphic rocks float?
The extrusive volcanic rock pumice can float on water. Other extrusive volcanic rocks are not so lucky.
Why doesn't a rock float?
A rock sinks in water because its density is greater than that of water. The weight of the rock is heavier than the water it displaces, causing it to sink rather than float.
Can you make a rock float?
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.
What rock can actually float where does it come from?
Pumice is the only rock that will float. It is a volcanic rock.
How can you determined if a rock can float in water?
You can determine if a rock can float by comparing its density to the density of water. If the rock is denser than water, it will sink. If the rock is less dense than water, it will float. This can be tested by placing the rock in a container filled with water and observing its behavior.
What rock can actually float?
Pumice is able to float.
What type of rock cannot float on water?
Virtually all types of rock will sink in water. The only rock that can float on water is pumice.
What doesn't float?
a rock
Does asbestos float?
Many asbestos-containing products will float, many will not. Raw asbestos rock will not float.
Does obsidian rock float?
No, obsidian rock does not float as it is a dense and heavy igneous rock formed from cooled lava. Its high density causes it to sink in water.
Does a shale rock float in water?
no
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
Do some rocks float?
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.
What type of rock can float on water?
Pumice.
What metamorphic rock can float?
Pumice.
