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If it floats....Don't eat it. It's rotten. If it sinks....It's perfectly fine.
I assume you mean "affect". Water density can be affected by impurities. Assuming the water is pure, it can be affected by temperature, pressure, and isotopic composition.
It means a density that is 0.907 times that of pure water.
Water, under normal cirumstances, has a density of about 1 gran per cubic centimeter. Under normal circumstances, Neon has a density of a little over .9 grams a liter(1000 cubic centimeters). This means Neon is less dense. In this sense, if Neon were placed in water it would escape to the surface because it is a gas. However, it will not float on the surface.
Density is the mass of a fixed volume of something. Water is the standard, and a mass of 1 gram of water has a volume of 1 cc, so its density is 1. 1 cc of rock has a mass of about 6 grams, so its density is 6. Things which float have a density less than 1.
Density current is where a warm current floats on top of a cold current.
If you add the salt to the water, the density of the water increases. so the what ever floats on the water will come up. That mean it will get immersed in the water to less extent. If the salt does not dissolve in the liquid, like rock oil, there will be no difference.
it means the liquid is heavier. It floats in the liquid.
Assuming you mean a water solution of coffee, anything that floats in water (has a density of less than 1gcm-3) will float; this includes ice, dry wood, a balloon fiiled with air, etc.
graphite is a mineral that floats in water.
You mean density less than 1 gram per cubic centimeter. The definition of the SI unit: Density of water is 1000kilograms per cubic, that is 1 gram per cubic centimeter. So, a material with a density less than water means that it swims in water and does not sink.
The density of Saturn is less than the density of water, about 70% of water's density in fact.
water sinks in water, or rather, oil floats on water, and does not mix
If it floats....Don't eat it. It's rotten. If it sinks....It's perfectly fine.
The needle sink in water because we put the needle in water...
Do you mean floats? Tennisball, football, basketball, pool toys....
Water vapor is invisible water (kind of like mist) that floats around in the air.