Class 9 Science Chapter 3, Tissues in Action, follows on from the cell chapter and asks why cells group into tissues and why some tissues keep growing throughout life while others stop. It covers plant meristems and permanent tissues, the four kinds of animal tissue, and then, new in this book, the musculoskeletal system, types of joints and the skeleton.
What Class 9 Science Chapter 3 Covers
3.1 and 3.2 Plant Tissues explain how a plant grows in length through the apical meristem, in girth through the lateral meristem, and regrows after cutting or grazing through the intercalary meristem, with a two-jar root experiment. Permanent tissues are simple (parenchyma, collenchyma, sclerenchyma) or complex (xylem and phloem).
3.3 Animal Tissues starts from actions you can do at your desk (blinking, clenching a fist, a deep breath, touching something warm) and maps them to epithelial, connective, muscular and nervous tissue.
3.4 to 3.6 Movement show how muscles and bones work together, the ball and socket, hinge, pivot and fixed joints, and the parts of the skeletal system.
Exercises in Chapter 3
- Revise, Reflect, Refine questions on plant and animal tissues and on joints.
- The Journey Beyond projects include asking a doctor about ligament ruptures, studying pruning and grafting, and looking at the movements in tribal dance forms.
Read Class 9 Science Chapter 3 Online
More Chapters
- Previous: Chapter 2: Cell: The Building Block of Life
- Next: Chapter 4: Describing Motion Around Us
- Hindi medium: Class 9 Science Chapter 3 PDF in Hindi (Anveshan)
- All Science chapters and the other Class 9 books: Class 9 NCERT books 2026-27
FAQ
What are the types of meristem in Class 9 Science Chapter 3?
Apical meristem (growth in length at root and shoot tips), lateral meristem (growth in girth) and intercalary meristem (regrowth after cutting or grazing).
What are the four types of animal tissue?
Epithelial, connective, muscular and nervous tissue.