Introduce second and third grade students to physical science and STEM topics with this Spanish 10-book set. These nonfiction books feature intriguing images, a glossary, an index, and helpful diagrams to keep students engaged in reading as they learn important scientific topics such as friction, energy, matter, ecosystems, and more. Each 32-page book includes a fun science activity that meets Next Generation Science Standards and helps students apply what they've learned. Titles in this set include: Materia cambiante (Changing Matter); Gravedad (Gravity); Electromagnetismo (Electromagnetism); Fuerzas equilibradas y no equilibradas (Balanced and Unbalanced Forces); Energía en acción (Energy in Action); La naturaleza de la materia (The Nature of Matter); Fuerzas (Forces); Energía (Energy); Fricción (Friction); Movimiento (Motion).