Exercise Solutions Available
Step-by-step answers for all textbook questions in this chapter
Week 1 — Physics Chapters
| Day | Chapter | Task |
|---|---|---|
| 1 | Measurement | Key instruments, least count formulae; solve 5 numerical problems |
| 2 | Motion | All 3 equations of motion; derive graphically; solve 8 numericals |
| 3 | Motion (Practice) | 10 more numericals; graphical interpretation; revise definitions |
| 4 | Fluids | Pascal's law; Archimedes principle; flotation condition; 5 numericals |
| 5 | Acoustics | Sound waves; properties; echo; reverberation; SONAR |
| 6 | Electricity | Current, voltage, resistance; Ohm's law; series/parallel circuits |
| 7 | Week 1 Review | All 1-mark Physics questions; redo 5 Motion numericals |
Week 2 — Chemistry Chapters
| Day | Chapter | Task |
|---|---|---|
| 8 | Matter and Its Surroundings | 3 states; interconversion; evaporation vs boiling |
| 9 | Atomic Structure | Thomson → Rutherford → Bohr; proton/neutron/electron; isotopes/isobars |
| 10 | Solutions | Types of solutions; concentration; solubility; saturated/unsaturated |
| 11 | Changes Around Us | Physical vs chemical changes; types of chemical reactions |
| 12 | Carbon and Its Compounds | Allotropes of carbon; organic compounds basics |
| 13 | Periodic Table | Periods and groups; properties along periods and groups |
| 14 | Week 2 Review | All 1-mark Chemistry questions; draw Bohr model for Na, O, Ca |
Week 3 — Biology Chapters
| Day | Chapter | Task |
|---|---|---|
| 15 | Nutrition and Health | Photosynthesis; balanced diet; vitamins; deficiency diseases |
| 16 | Plant Kingdom | Classification of plants; bryophytes, pteridophytes, gymnosperms, angiosperms |
| 17 | Animal Kingdom | Classification — invertebrates and vertebrates; key features of each phylum |
| 18 | Nervous System | CNS/PNS; neuron structure; reflex arc; brain parts |
| 19 | Nervous System (Diagrams) | Draw neuron with labels; draw brain with labels; reflex arc diagram |
| 20 | Fluids in Biology | Blood circulation; osmosis in plants |
| 21 | Week 3 Review | All 1-mark Biology questions; draw and label 3 biology diagrams |
Week 4 — Mock Tests + Integration
| Day | Chapter | Task |
|---|---|---|
| 22 | Cross-topic revision | Complete Model Paper 1 (2 hours, timed) |
| 23 | Review Model Paper 1 | Go through all errors; redo incorrect numericals |
| 24 | Diagram Bank | Draw all 8 essential diagrams without notes |
| 25 | Full Mock Test 2 | Attempt Model Paper 2 (3 hours) |
| 26 | Review Mock Test 2 | Focus on 5-mark answers; improve structure |
| 27 | Formula Revision | All physics formulae + chemistry equations from memory |
| 28 | Biology + Chemistry terms | 50 key terms flashcard drill |
Final 2 Days
| Day | Task |
|---|---|
| 29 | Speed revision: all 1-mark answers; all definitions; all diagrams (once each) |
| 30 | Light revision only; rest well; no new material |
Essential Diagrams Checklist
- [ ] Neuron with labels (axon, dendrite, cell body, myelin sheath, nodes of Ranvier)
- [ ] Reflex arc diagram
- [ ] Human brain (cerebrum, cerebellum, medulla oblongata, pons)
- [ ] Bohr atomic model for Sodium (Na) — 11 electrons across 3 shells
- [ ] Plant cell vs Animal cell
- [ ] Photosynthesis apparatus (experimental setup)
- [ ] Velocity–time graph (uniform acceleration)
- [ ] Distance–time graph (uniform motion vs non-uniform motion)
Frequently Asked Questions
For Class 9 Science, spend roughly 40% on Physics (numericals require practice), 30% on Chemistry (concepts + equations), and 30% on Biology (diagrams + processes). Adjust based on your weak areas.