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Tamil Nadu Class 8 Science 30-Day Revision Plan — Samacheer Kalvi

Day-by-day 30-day revision plan for Class 8 Science Tamil Nadu State Board covering all chapters across three terms.

Updated 11 May 20264 min read

Exercise Solutions Available

Step-by-step answers for all textbook questions in this chapter

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How to Use This Plan

  • Follow the plan starting 30 days before your exam.
  • Each day covers one chapter with a specific task.
  • After completing a chapter, add weak questions to a mistake notebook.
  • Revise the mistake notebook every Sunday.

Week 1 — Term 1 Physics and Chemistry

DayChapterTask
Day 1MeasurementsRead textbook; write all SI units and instruments; draw measuring diagrams
Day 2Force and PressureWrite formula P = F/A; list contact and non-contact forces; write Archimedes' principle
Day 3HeatWrite Q = mcΔT; explain three modes of heat transfer; solve two numericals
Day 4Matter Around UsCompare three states of matter; write changes of state with examples
Day 5Atomic StructureWrite electronic configurations of first 15 elements; draw Bohr model
Day 6Periodic ClassificationState modern periodic law; compare Mendeleev vs modern table; note group names
Day 7Week 1 ReviewAttempt 15 one-mark questions from Days 1–6; correct mistakes

Week 2 — Term 2 Physics and Chemistry

DayChapterTask
Day 8LightWrite laws of reflection; draw mirror and lens diagrams; write VIBGYOR
Day 9ElectricityWrite V = IR; draw series and parallel circuits; write Joule's heating law
Day 10Acids, Bases and SaltsWrite properties; indicator colour table; neutralisation reactions
Day 11Carbon and Its CompoundsCompare allotropes; write alkane/alkene/alkyne formulae and examples
Day 12Term 2 Short AnswersWrite three-mark answers for Force, Heat, Light, and Electricity
Day 13Term 2 Short AnswersWrite three-mark answers for Atoms, Acids/Bases, Carbon
Day 14Week 2 ReviewAttempt 10 three-mark questions; correct and rewrite any incomplete answers

Week 3 — Term 3 Biology

DayChapterTask
Day 15Life Processes of PlantsWrite photosynthesis equation; compare xylem and phloem; explain transpiration
Day 16Life Processes of AnimalsWrite digestion pathway; list enzymes; draw heart diagram
Day 17MicroorganismsList five types with examples; write disease table (organism + disease)
Day 18ReproductionList asexual methods; explain sexual reproduction in plants step by step
Day 19Health and HygieneCompare communicable vs NCDs; write vaccine explanation; list hygiene practices
Day 20Biology Long AnswersWrite five-mark answers for photosynthesis and digestion
Day 21Week 3 ReviewAttempt 10 biology questions; correct and note mistakes

Week 4 — Mock Papers and Final Revision

DayTask
Day 22Revise Term 1 Physics formulae and diagrams
Day 23Revise Term 1 and 2 Chemistry key terms and reactions
Day 24Revise all Biology long-answer topics
Day 25Attempt Model Paper 1 under timed conditions (2.5 hours)
Day 26Correct Model Paper 1; revise every topic where marks were lost
Day 27Attempt Model Paper 2 under timed conditions (2.5 hours)
Day 28Correct Model Paper 2; add fresh mistakes to mistake notebook
Day 29Final revision of mistake notebook
Day 30Quick scan of all formulae, equations, definitions, and key diagrams

Daily Study Tips

  • Study Science for 60–90 minutes per day on school days.
  • Write every answer in your notebook — do not just read.
  • Draw diagrams in pencil with clear labels.
  • Practise numericals step by step with units.
  • Review the previous day's work for 10 minutes before starting new material.

Frequently Asked Questions

Resume from where you stopped. Don't try to double up too many days. Consistency matters more than speed.