For example, if you have an ice cube you have a solid piece of matter, but if you heat it up it melts and then it's liquid, and after getting hot enough it evaporates and even though you can't see it it's still there, but as a gas.
Paraguay is known as the Heart of South America due to its location in the middle of South America.Paraguay's name is said to mean "crowned river" after the Guarani words for water and palm crown.
