freezing is when a substance reaches its freezing point & freezing means a substance changes from a liquid into a solid by decreasing heat energy ->  when a substance reaches its freezing point, it will change from a liquid to a solid  when a substance reaches its freezing point, it will change from a liquid to a solid & the water reaches its freezing point & water is a kind of substance ->  water will change from a liquid to a solid when it reaches its freezing point  water will change from a liquid to a solid when it reaches its freezing point & liquid is a kind of state of matter & solid is a kind of state of matter -> water will change its state of matter when it reaches its freezing point