Nervous, Respiratory & Sensory Systems. From "nerves" to the sense of "smell" and "tasting" to "lung" functions, students will learn about three major systems of the human body in this 28-lesson book. Examples: - What is the difference between "sensory nerves" and "motor nerves?" - What part of the eye is the "iris?" - What part of the ear is a hollow, snail-shaped bone? - How is oxygen used by the body? As students gain a better understanding of the human body, they enhance their reading and comprehension skills. Included are a glossary of terms, preview pages, vocabulary lists, informative readings, fact pages, diagrams, and summaries of major concepts. There is also a final "human body" crossword puzzle and word search that can be used as pre/post tests.