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Depends what's in your gravel.
In order of best to worst:
Sandstone 1
Limestone
Concrete
Water
Soil
ref:http://en.wikipedia.org/wiki/List_of_thermal_conductivities
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∙ 15y ago
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Which is the better thermal insulator saw dust or styrofoam?
saw dust is the better termal insulator
Does salt water or fresh water filter sand gravel soil and pebbles better and why?
Water does not filter particles: it is the other way around. Pebbles, gravel, and sand are used to filter water, with the smallest particle size (sand) filtering the most particulates from the water, whether it is salt water or fresh water.
How do you use insulator in a sentence?
That wire could use a better insulator.
Is bubble wrap or plastic wrap a better insulator?
It is an insulator. It would take many wraps to make it become a good insulator. There are much better products in the market place to use for insulation purposes which are much safer.
Is plain water a conductor or insulator?
Plain distilled (or double distilled) water with no impurities is a poor conductor of electricity. The more impurities it has the better conductor it becomes
Why is sand bad at insulating water?
sand is a bad insulator because sand is made of little rocks called gravel so then the heat is going to escape the cracks of the gravel
What is a better insulator for a hot water pipe metal or nonmetal?
Non-metal
Is a water conductor or insulator?
Insulator
Does gravel float or sink in water?
No, it does not.
Does salt water or fresh water filter sand gravel soil and pebbles better?
fresh water and peppels fresh water and peppels
What will happen when gravel touches water?
The Gravel will absorb the water until it can absorb anymore.
Is pure water is a conductor or insulator?
pure water is an insulator.
How long can gravel retain water?
The amount of time that gravel can retain water will vary depending on its state. Fine gravel will holder water for long as opposed to coarse gravel.
Does gravel make water acidic?
Gravel is practically insoluble in water.
Is it a better value to buy gravel wet or dry?
Dry gravel is lighter than wet gravel. So dry is better value.
Which is the better thermal insulator saw dust or styrofoam?
saw dust is the better termal insulator
Why do styrofoam cups keep water hot for longer than and paper cups?
It's a better insulator
