We all know the three states of matter: solid, liquid, and gas. But what defines these different states? What if something is in between states? This nonfiction Spanish book goes deeper into the study of matter, and teaches students important scientific concepts, vocabulary, and terminology. The colorful images, diagrams, sidebars, and text features will keep students connected to the text. Aligned to state and national standards, the fun lab activity provides a real-world learning experience that supports STEM instruction. Keep students reading with this fascinating science book!