Heavy ice is the densest form of water. Regular water is denser than both regular ice and water vapor. Heavy water has both hydrogen atoms replaced with deuterium. Heavy-water ice sinks in normal water, whereas regular ice floats.
The element mercury is the most dense liquid and is even more dense than many solids. It has a density of 13.5336 grams per cubic centimeter. Mercury is the only pure metal element that is a liquid at room temperature.
In a dense forest, the trees crowd together to form a thick canopy. The canopy provides shelter to the vegetation and wildlife that live beneath it. The term "dense forest" is most often used to describe a rain forest.
The most dense metal on Earth is osmium, which weighs 22.6 kilograms per liter. The element osmium is so dense that a block that is 2 cubic feet in size weighs about the same as a 3,400-pound automobile. Osmium has twice the density of lead, and it is heavier than other...
Water reaches its maximum density at around 39 degrees Fahrenheit. When water either cools or heats beyond this point, it becomes less dense. Although most ice floats on water, heavy ice is composed of an isotope of hydrogen known as deuterium and sinks as a result of i...
Dense regular connective tissue is comprised of collagen fibers. The collagen fibers are densely packed together and arranged in a parallel manner. Dense regular connective tissue is found throughout the human body.
Lithium, potassium and sodium are all less dense than water in their elemental form. Water has a defined density of 1 gram per cubic centimeter, while the three lightest metals are between 0.534 gram per cubic centimeter and 0.971 gram per cubic centimeter.