Class 8 Science practice questions and mock tests
Practice covers physics, chemistry and biology as separate strands, with reason-based questions and simple numericals.
What Class 8 science practice covers
Practice on Medalix is organised chapter by chapter, so a student can work on exactly the topic they studied in school that week rather than a random mix.
- Crop production and management
- Microorganisms: friend and foe
- Synthetic fibres, plastics, metals and non-metals
- Coal, petroleum and combustion
- Conservation of plants and animals
- Cell structure and functions
- Reproduction in animals and reaching the age of adolescence
- Force, pressure and friction
- Sound, chemical effects of electric current, light
Topic names follow the chapter structure most Indian schools use at this level. Check your school's syllabus for the exact order in which chapters are taught.
How a Class 8 student uses Medalix
1. Study the topic
Open the chapter under Class 8 science and read the concept material before attempting questions.
2. Practise that exact topic
Attempt topic-wise questions with instant feedback, so a mistake is corrected while the concept is still fresh.
3. Take a timed test
Move to a chapter test or a full-length mock test to build speed and exam temperament.
4. Review and repeat
Progress tracking shows accuracy and completion per topic, so the next session starts with the weakest chapter.
Question formats in Class 8 science
- •Topic-wise multiple-choice questions
- •Assertion and reason questions
- •Numerical and word problems
- •Timed chapter tests and mixed mock tests
Mock tests and school exam preparation
Chapter practice tells a student whether they understood a concept. A mock test tells them whether they can use it under time pressure, in the order a real paper asks. For Class 8, the useful rhythm is regular topic practice through the term and full-length timed papers in the two or three weeks before a school exam — always followed by a review of every wrong answer.
For parents
The signal worth watching is not how many questions were attempted but which topics keep returning low accuracy. Medalix records accuracy and completion per topic, so a Class 8 student's weak chapters are visible before an exam rather than after it.

