Years Covered
2026, 2025, 2024, 2023, 2022, and 2021 public exam style question sets.
Class 10 Science 1 Mark MCQ with Answers 2026-2021
Practise Tamil Nadu SSLC Science one-mark questions from recent public exam years with verified answers and step-by-step solutions. Use this page as a quick entry point, then attempt the live revision challenge to track XP.
What You Get
Verified answers, clear solutions, and instant practice for Class 10 Science 1 mark questions.
Best For
Final revision, chapter recall, public exam practice, and quick mobile study sessions.
Science Topics to Revise
- Physics: motion, optics, electricity, heat, acoustics, and nuclear physics.
- Chemistry: atoms, periodic classification, solutions, chemical reactions, and carbon compounds.
- Biology: plant anatomy, transportation, nervous system, hormones, reproduction, genetics, health, and environment.
Unit-by-unit — 567 worked questions, 49 one-mark items
Every unit below links to its free revision page with the full worked solutions. The one-mark column counts the MCQ, fill-in-the-blank and true/false items — the kind that decide your Part I score in the public exam.
Frequently asked questions
Are these Class 10 Science one-mark questions free?
Yes. All 567 worked questions across 23 units — including 49 one-mark items (MCQ, fill-in-the-blank, true/false) — are free, with no sign-up.
Do the questions come with answers?
Yes. Every question links to its full worked solution on the unit's revision page, so you see the reasoning, not just the letter.
What is the revision challenge?
A timed, scored run through the same bank. You earn XP for correct answers and can retry the ones you miss — it is the fastest way to find the units costing you marks.