water contracts when cooling until about 4 deg. C. From that temp. further cooling causes the water to expand. as it freezes it continues to expand, that is why ice floats.
Ice floats on water because it has a lower density than water. It flows on water when either it is blown by the wind or it is moved by water currents.
Melting of ice or snow.
Yes
Melting ice is a physical change because the properties of the physical changes say that there is a physical change when the state of a material changes. the ice changes into water after melting .this is temporary change as the property says. you can change water back into ice by freezing.
Water can exist in three states; as liquid water, as solid ice, and as the gaseous water vapor. In the presence of a cold surface such as the outside of a glass containing ice, vapor in the air will condense into liquid water on the cold outside surface.
The water raises the temperature of the ice cube
The earth's surface changes through erosion, due to wind, water, vegetation, ice or temperature
Water changes into ice by solidification, aka freezing. When water changes into ice, the liquid particles are reorganizing themselves to become a solid particle.
Since the water is at a higher temperature than the ice, it transfers heat to the ice. This in turn raises the ice's temperature above its melting point of 32oF which turns the ice to water.
glacier(:
ice water
Melts
if the temperature raises then water is melting (ice becomes water),if the temperature falls then it's freezing (water becomes ice)
Temperature causes changes in dry and water ice
Ice is lighter (less dense) than water. Which is why ice can float on the surface of water.
ice to water to ice
Ice floats on water because it has a lower density than water. It flows on water when either it is blown by the wind or it is moved by water currents.