EVERYDAY SCIENCE

Detailed explanation-1: -The change from the liquid state to the solid state is called freezing. As the liquid cools, it loses thermal energy. As a result, its particles slow down and come closer together.

Detailed explanation-2: -Adding energy (heating) atoms and molecules increases their motion, resulting in an increase in temperature. Removing energy (cooling) atoms and molecules decreases their motion, resulting in a decrease in temperature.

Detailed explanation-3: -As the heat is removed, the temperature of the liquid will decrease. This is because, with removal of heat, there is a decrease in the kinetic energy of the liquid particles (atoms/molecules).

Detailed explanation-4: -With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion. In a solid, the particles pack together as tightly as possible in a neat and ordered arrangement.

Detailed explanation-5: -As the temperature of a solid, liquid or gas increases, the particles move more rapidly. As the temperature falls, the particles slow down.