Science is an integral part of our everyday lives and helps us understand the world around us. With the objective of fostering scientific temper, curiosity, inquiry and problem-solving skills among learners, CBSE organises the CBSE Science Challenge for students of Classes VIII to X, as a student enrichment activity that encourages scientific thinking and promotes higher-order thing skills. Overview of the CBSE Science Challenge The Science Challenge activity will be conducted through two rounds - within school, and inter school. There is no fee for students participating in either of the two rounds. All students of classes VIII to X in CBSE affiliated schools are eligible to participate in Round One (first stage). School will be required to register students for this round. For Round Two (second stage), each affiliated school registered in the first stage can nominate, the earlier registered 6 students (best 02 students from each participating class). The Science Challenge question set will comprise of a variety of stimulants followed by MCQs. The task for participating students would focus both on speed and accuracy. All the participants of Round Two will be issued an online participation certificate by the Board. Appreciation Certificate will be given to best performing students. CBSE Science Challenge 2026-27 Date Activity Details 14th October 2026 - 30th October 2026 Registration by Schools for Round 1 Affiliated schools login on the Science Challenge Portal at https://cbseacadit.nic.in/sc/ using the LOC credentials, and fill up the number of students taking part in Round 1. 02nd November 2026 - 13th November 2026 Conduct of Round 1 at School Level On 02nd November 2026, a Science Challenge paper with MCQs will be made available to the registered schools along with the scoring criteria on the same portal. Schools will organize the First Round of Science Challenge for the registered students. 17th November 2026 - 25th November 2026 Registration by Schools for Round 2 Schools will identify 06 students (02 each from Classes VIII to X) on the basis of their performance on the assigned tasks for Round-1, and register the identified students for Round 2 on the CBSE Science Challenge portal. 30th November 2026 - 04th December 2026 Conduct of Round 2 (Computer Based) A computer-based Science Challenge would be conducted by the Board for the registered students, on any one day (to be notified in due course), tentatively between 30th November 2026 04th December 2026. Only the schools that have completed the first stage and subsequently registered students for Round 2, shall be eligible for the second stage. The detailed modalities of conduct of Round 2 shall be communicated to the schools that register students for the second round of the challenge. For more details, click here.