gases

What continues to expand to take up all the space it can? Gases! Gas is a state of matter, like a liquid or a solid. But it has properties that are quite different. In this Spanish-translated book, read all about the differences and what makes a gas a gas.What continues to expand to take up all the space it can? Gases! Gas is a state of matter, like a liquid or a solid. But it has properties that are quite different. In this Spanish book, read all about the differences and what makes a gas a gas.