CBSE Class 10 Science — Guess Paper & Important Questions 2027
Everything for Science in one place — guess paper, important questions and chapter-wise important topics for the 2027 exam, from analysis of 5 board + 2 official sample papers (2022–2026).
Guess Paper 2027
A full 39-question paper on the official pattern, built from the most-likely questions.
Open guess paperImportant Questions
87 question patterns that have repeated across past board & sample papers.
See repeated questionsImportant Topics
Every chapter’s topics ranked by how often and how recently they were asked.
See important topicsTop 5 topics
| # | Topic | Chapter | Importance |
|---|---|---|---|
| 1 | Image formation by spherical mirrors / ray diagrams | Light - Reflection and Refraction | ★★★★★ |
| 2 | Food chains, food webs and trophic levels / 10% law | Our Environment | ★★★★☆ |
| 3 | Identifying type of reaction (combination/decomposition/displacement/double displacement) | Chemical Reactions and Equations | ★★★★☆ |
| 4 | Nutrition in animals (human digestive system) | Life Processes | ★★★★☆ |
| 5 | Plant hormones and tropic movements | Control and Coordination | ★★★★☆ |
Frequently asked questions
Is this the real CBSE Class 10 Science guess paper 2027?
No. It is a practice guess paper built by analysing which questions and topics repeat across the CBSE Class 10 Science board papers (2022–2026) and official sample papers. It follows the latest official exam pattern but is not an official or leaked paper.
How many questions repeat in CBSE Class 10 Science?
We found 87 question patterns that appeared in two or more of the analysed papers (5 board + 2 sample papers). The most-repeated ones are listed on the Important Questions page.
What are the most important topics for CBSE Class 10 Science 2027?
The top topics by repetition are Image formation by spherical mirrors / ray diagrams; Food chains, food webs and trophic levels / 10% law; Identifying type of reaction (combination/decomposition/displacement/double displacement). The full ranked list is on the Important Topics page.
Where can I see the CBSE Class 10 Science guess paper?
The full 39-question guess paper is on the Guess Paper page — free to view, with each question tagged by chapter and how often it has appeared in past papers.