The rate of change in ice melting is a result of its surface area, which is related to its shape. Because it represents a point of contact with another substance at a higher temperature, differences in surface area affect the melting rate of ice proportionately. A thin sheet of ice, which has a greater degree of surface area, will melt faster than a cube of ice that is of a similar volume.Know More
The common term "melting" describes one of the physical processes referred to in chemistry and physics as "phase transition," in which a substance is changed from one physical state to another by an increase or decrease of its internal energy. One of the scientific criteria regarded as a qualifier for a substance melting is the amplitude of the internal vibrations within a solid substance reaching a point where vibrational instability causes the crystal structures to come apart.
Intermolecular forces, or IMF, are the binding forces that cause the water molecules in ice to rotate around fixed positions. Adding heat to ice raises the internal kinetic energy level. The increased internal vibrations enable the water molecules to slide freely past each other, and they assume the liquid physical stage of water. If the temperature is increased far enough past the point at which water assumes its liquid stage, the internal energy will enable the water molecules to move independently of each other. At this point, water assumes the gaseous state commonly referred to as water vapor or steam.Learn more about Earth Science
An ice cap is a glacier that covers less than 19,000 square miles. These miniature ice sheets form in polar and subpolar regions that are high in elevation and possess a relatively flat surface. Glacial ice that covers an area greater than 19,000 miles is known as an ice sheet.Full Answer >
Landslides can result from a variety of both natural and human causes. Factors that influence landslides include slope angle, climate, weathering, water content of the land, vegetation, geology and slope stability.Full Answer >
The Earth experiences days and nights as a result of the planet spinning on its axis. As the planet spins, the part that is facing the sun experiences day, while it is night for the part facing away from the sun.Full Answer >
The last Ice Age, known as the Pleistocene Epoch, began almost 1.8 million years ago and lasted until approximately 11,700 years ago. During this time, massive glaciers covered most of the surface of the Earth. There have been four known Ice Ages on Earth in the 4.6 billion years that the planet has existed. It is very possible that there were many more that occurred that are undocumented from before the advent of mankind, about 2.3 million years ago.Full Answer >