melting
The energy needed to change ice into water is called the heat of fusion. For ice, this value is around 334 joules per gram. So, for 3 grams of ice, the energy gained when it changes to water would be around 1002 joules (334 joules/gram * 3 grams).
when a liquid turns into a solid it contracts
This process is called deposition. It occurs when water vapor transitions directly to ice without first becoming a liquid. Deposition is the opposite of sublimation, where a solid changes directly to a gas.
It is called "dry" because when heat is given, it sublimes (turns from a solid into a gas). This is different from actual ice that turns from a solid to a liquid. It is called "ice" because solid carbon dioxide (dry ice) is very cold, similar to ice.
The process is called deposition - the direct transition of water vapor to ice without first becoming a liquid. This typically occurs when the air is very cold and the water vapor in the air condenses directly into ice crystals.
The process when snow or ice changes to water is called melting.
Ice.
sublimation
The name for solid water is ice. It changes to a liquid when it melts.
sublimation
Water vapor that changes in to an ice crystal is called deposition. This what happens in the formation of snow.
When water changes from a liquid state (just water) to a solid state (ice) that process is called "freezing." The freezing point of water is 32 degrees Fahrenheit (0 degrees Celsius).
Water changes into ice by solidification, aka freezing. When water changes into ice, the liquid particles are reorganizing themselves to become a solid particle.
It is called sublimation.
The bonds between hydrogen and oxygen atoms of individual water molecules do not change when liquid water changes to ice. This is a physical change called freezing, and does not cause any chemical changes to occur. Only chemical changes can cause changes in chemical bonds.
Condensation is the form in which water vapor changes into liquid. If water vapor in the atmosphere cools enough, it changes back into liquid. This process of water vapor changing to a liquid is called Condensation.
The bonds between hydrogen and oxygen atoms of individual water molecules do not change when liquid water changes to ice. This is a physical change called freezing, and does not cause any chemical changes to occur. Only chemical changes can cause changes in chemical bonds.