* States of Matter: Water exists in three states: solid (ice), liquid (water), and gas (water vapor). Each state has different properties due to the arrangement of its molecules.
* Molecular Movement:
* Liquid Water: Water molecules in a liquid state are close together but can move around freely. They have enough energy to overcome the attractive forces between them, allowing them to slide past each other. This freedom of movement allows water to conform to the shape of its container.
* Ice: In a solid state (ice), water molecules are tightly packed and arranged in a rigid, crystalline structure. The molecules are locked in place by strong attractive forces and vibrate only slightly. This rigid structure makes ice a solid with a definite shape.
* Density:
* Liquid Water: Liquid water is denser than ice. This is because the molecules in ice are spaced further apart due to the crystalline structure.
* Ice: The lower density of ice is why it floats in water.
In summary: Liquid water takes the shape of its container because its molecules can move freely. Ice cubes retain their shape because their molecules are locked in a rigid, crystalline structure.
