Last 100 Days to Score 95%+ in Science | Class 10 | CBSE Board Exam 2026-27 | By Samridhi Sharma

Summary

Samridhi Sharma addresses Class 10 students who feel anxious or unprepared with roughly 100 days remaining before their Science board exam. Her central message is that it is still possible to make progress, but success requires a clear plan, consistent effort, and disciplined use of a small number of reliable resources—not panic or self-blame.

Exam structure and question pattern

• Theory paper: 80 marks:
  • Biology: 30 marks
  • Chemistry: 25 marks
  • Physics: 25 marks
• Internal assessment: 20 marks.
• She describes a paper with 39 questions:
  • 16 one-mark MCQs
  • 4 one-mark assertion–reason questions
  • 6 two-mark very short-answer questions
  • 7 three-mark short-answer questions
  • 3 four-mark case-based questions
  • 3 five-mark long-answer questions
• Around 50% of questions are competency-based, testing familiar concepts through applications or unfamiliar wording.
• The chapter-wise marks she gives are based on an analysis of a CBSE sample paper, not a guaranteed allocation. She stresses that chapter weightage can vary between sets and exams.

Sample-paper chapter weightage

• Biology: Life Processes — 11 marks.
• Chemistry:
  • Chemical Reactions and Equations — 6 marks
  • Acids, Bases and Salts — 6 marks
  • Metals and Non-metals — 5 marks
  • Carbon and Its Compounds — 8 marks
• Physics:
  • Light: Reflection and Refraction — 7 marks
  • The Human Eye and the Colourful World — 5 marks
  • Electricity — 6 marks
  • Magnetic Effects of Electric Current — 7 marks

She recommends prioritising higher-weightage chapters, especially for students who have not yet started, while cautioning against treating the sample-paper distribution as fixed.

Suggested 100-day preparation plan

1. First 50 days: Complete the syllabus

   • Aim to finish all 13 chapters: five in Biology, four in Physics, and four in Chemistry.
   • Study each chapter using NCERT.
   • Make concise notes as you go.
   • Complete the NCERT back-exercise questions.
   • Keep a separate notebook for formulas, reactions, and important examples.

2. Days 51–65: Revise and practise questions

   • Revise the chapters already completed.
   • Practise NCERT Exemplar problems, previous-year questions, and other chapter-wise questions.
   • Work on MCQs, diagrams, and numerical problems.
   • Use free practice material where possible.

3. Final preparation period: Sample papers and revision

   • Attempt multiple sample papers under exam-like conditions.
   • Review the marking scheme as well as the questions.
   • Use the remaining time for final revision and recall.
   • Account for the Mathematics exam when planning; the speaker advises students not to assume that every calendar day is available for Science study.

Study resources and advice

• Prioritise NCERT. She advises against spending time chasing extra reference books, particularly before mastering the core text.
• Use the NCERT Exemplar, available through the NCERT website, for additional practice.
• Use CBSE sample papers, marking schemes, and previous-year questions to understand question styles and expected answers.
• Her channel’s Class 10 Science playlist is presented as a free source of lessons, concepts, and important questions.
• She mentions handwritten notes and a question bank as optional study aids, and refers to a revision programme called Project 45.
• Avoid studying with several teachers or collecting multiple sets of notes. Choose a teacher and a core book, then follow them consistently.

Exam-answering guidance

• Learn how answers are evaluated by studying the marking scheme.
• Include relevant keywords and write answers clearly and in an organised way.
• Pay attention to the expected word limit; writing long answers to short-mark questions wastes time.
• Practise time management and attempt every question.
• Understand concepts rather than memorising without comprehension.
• Work steadily and avoid judging yourself by past performance. The speaker encourages students who are struggling or consider themselves below average to begin now.

Speakers and sources mentioned

• Speaker: Samridhi Sharma.
• Other people mentioned: Rakshak Sir and Sunil Sir, identified as contributors to the handwritten notes; they do not speak in the subtitles.
• Educational sources referenced: NCERT textbooks and Exemplar; CBSE sample papers, marking schemes, and previous-year questions; Samridhi Sharma’s YouTube lessons and study materials.