In Animal Defenses, children can learn how animals adapt to protect themselves from danger. Porcupines use quills, for example, while water buffalo move in herds. ELF Science books are written to correspond with Next Generation Science Standards. The Intermediate Level (Purple) covers the recommended content for 1st grade students. This first steps level of science bundle for students features a book with beautiful photographs that discusses the featured topic, glossary, quizzes, vocabulary, and games. On page Spanish language support is available by tapping the globe in the bottom right hand corner. On page parent support is available by tapping the handholding icon in the bottom right hand corner. Each word on the page is tappleble for beginning readers. Users can also tap the play button to hear the text read aloud. Downloadable PDF Teacher Resources contains: pre and post tests, 3 teacher cards (task, read, ELL), family time flyer in English and Spanish, and rewards for hardworking students.