CBSE has revised the Class 10 Science exam paper structure for 2020, increasing the total questions from 27 to 30. The paper will consist of 3 sections: Section A will have 14 objective questions worth 1 mark each, Section B will have 10 very short answer questions worth 3 marks each, and Section C will have 6 long answer questions worth 5 marks each. No overall choice between questions will be provided, but internal choices will be available within each section. CBSE Class 10 Science sample papers from 2016-2020 are available to help students practice for the board exam, as these papers follow the current exam pattern and trends from previous years' question papers set by CBSE.