What is matter? Is salt is a solid? Do gases have a shape? 'Read My World of Science: Solids, Liquids, and Gases' to find out! Learn about hardness and softness, changing shapes, gases and the air, and melting and freezing. Each book in the 'My World of Science' series explains science that you see in the world around you and use every day.What is matter? Is salt is a solid? Do gases have a shape? 'Read My World of Science: Solids, Liquids, and Gases' to find out! Learn about hardness and softness, changing shapes, gases and the air, and melting and freezing. Each book in the 'My World of Science' series explains science that you see in the world around you and use every day.
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