TGT Science interview questions and answers (2026)
TGT Science interview prep for CBSE and ICSE schools — real questions, model answers, and a Class 8–10 demo lesson plan that covers all three streams.
What this interview actually looks like
An honest breakdown of how Indian schools run this interview — not a generic template.
- 1Written test (30 min) — one physics numerical, one chemistry (balancing / reactions), one biology (diagram + short answer).
- 2Demo lesson (15–20 min) — Class 8, 9 or 10. Topic often given the same day.
- 3Subject panel (20 min) — HOD Science + one senior teacher. Expect one question from each of the three streams.
- 4Principal / HR round (15 min) — school fit, salary, lab-safety attitude.
- Two printed CVs + one lesson plan across streams
- Original B.Sc, B.Ed, CTET / state TET certificates
- Your own marker + a small demo item (magnet, indicator, or a plant sample)
- One printed diagram (heart, plant cell, or a circuit) you can draw quickly
Questions with model answers
Grouped by round. Each answer is 2–4 sentences — long enough to be real, short enough to remember. Dots show how often each is asked.
What they're really asking — Can you make abstract distinctions concrete?
Speed is how fast; velocity is how fast AND which way. Ask: 'if you walk 100 m north, then 100 m south in 2 minutes, what's your average speed? And your average velocity?' Speed is 100 m/min; velocity is 0, because you ended where you started. Draw the path on the board. That single example makes vector vs scalar click for the whole chapter.
What they're really asking — Do you know the harder end of your subject range?
Split into half-reactions: MnO₄⁻ + 8H⁺ + 5e⁻ → Mn²⁺ + 4H₂O; Fe²⁺ → Fe³⁺ + e⁻. Multiply the iron half by 5. Add: MnO₄⁻ + 5Fe²⁺ + 8H⁺ → Mn²⁺ + 5Fe³⁺ + 4H₂O. Talk through why each step exists — track electrons, track charge. Class 10 doesn't do redox but this is a common panel gotcha for a TGT Science role.
A 15-minute demo you can teach on Monday
Panels don't score creativity — they score structure, board work and closure. This is the skeleton that works.
- Class 10 — Electricity: series and parallel with real bulbs
- Class 10 — Life processes: nutrition in plants (photosynthesis demo)
- Class 9 — Motion: distance-time graph interpretation
- Class 9 — Atoms and molecules: mole concept intro
- Comfort across all three streams
- Board work — clean diagrams and equations
- Safety awareness in demos
- Cold-calling students
- Time-boxed close
A physical demo, image, or real-world question. Predict before you explain.
One-sentence rule on the board, diagram or equation.
One NCERT-style problem or observation, aloud.
A variation. Circulate; do not stand at the front.
Cold-call two students. Close with a real-world application.
Ask them back — questions for the interviewer
Most candidates freeze at “do you have any questions for us?” These signal that you take yourself seriously.
- How many periods per week does a TGT Science teacher get, and how many labs?
- Is the lab stocked and safe — when was the last audit?
- How is the Class 10 Science split across TGTs — by stream or by section?
- What's the CPD budget for science workshops?
- Do teachers get lab access outside class hours to prep demos?
- What's the appraisal cycle and what's measured?