Official CBSE Assignments for Class 8 Science
Review targeted academic assignments with the CBSE Class 8 Science Science and Technology Assignment Set 02. Built according to official CBSE standards for the 2026-27 term, these downloadable Class 8 Science worksheets support effective daily practice for Science And Technology.
Solved Practice Assignments for Science
Navigate directly to the solved Science assignments using the digital viewer below. Each practice set includes detailed step-by-step solutions, allowing students to instantly cross-check their work and identify areas requiring further revision.
Section – A : Chemistry
1) What is friction? What are the two main factors on which the force of friction depends?
2) What is the principle used in ball bearings? How are ball bearings useful to us?
3) What is viscous drag? State three factors on which it depends.
4) With the help of a diagram discuss the terms: Amplitude, Time Period, and Frequency of a sound wave.
5) Draw a labeled diagram of human ear, explaining how the energy of the sound wave is transmitted to the nerves in the cochlea.
6) Name the three types of musical instruments, giving one example of each. Describe how sound is produced in each type.
7) Using the example of a loudspeaker, explain how sound travels.
8) Define the following terms: Electrolyte, Electrolysis, Electrodes,
9) How can you electroplate an aluminium chain with gold? Explain with the help of circuit diagram.
10) Describe the electrolysis of acidulated water.
Section – B : Chemistry
1) Write differences between metals and non-metals on the basis of malleability, conductivity, melting point and tensile strength.
2) What do you mean by destructive distillation of coal? Write its products and their uses.
3) How is coal formed?
4) Write the chemical equation for the following:
a) Reaction of sodium with water.
b) Reaction of magnesium oxide with water.
c) Reaction of iron with copper sulphate.
5) What is reactivity series? Arrange these elements in descending order of reactivity. Fe , K , Zn , Na , Al , Cu , Au , Ag
Section – C : Biology
1. What is vaccine? Describe the role of micro-organisms in vaccination.
2. Define carriers. How carriers spread diseases? Explain with one example and also mention the preventive measures.
3. Explain three common methods to preserve food items along with examples.
4. ‘Percentage of nitrogen in the atmosphere remains more or less constant’. Explain and justify.
5. Write four major groups of micro-organisms and draw well labeled diagram of one microorganism of each group.
6. Define crops. How crops can be classified on the basis of the season. Explain with examples.
7. Describe two economical modern methods of irrigation.
8. Why manures should be preferred over fertilizers?
Free study material for Science
CBSE Class 8 Science Assignments for Science And Technology
Revision Assignment: Science And Technology (CBSE)
Review targeted chapter assignments for Class 8 Science Science And Technology. Built according to official CBSE guidelines, these downloadable problem sets help students build accuracy and prepare effectively for school tests.
Key Advantages of Solving Science And Technology Assignments
- Syllabus Compliance: Sets reflect current CBSE evaluation criteria and official marking frameworks.
- Multi-Format Practice: Includes varied problem types designed to deepen comprehension across all sub-topics.
- Time Management: Routine practice optimizes pacing to finish school examinations comfortably within schedule.
Effective Strategy for Class 8 Science Assignments
- Initial Reading: Begin by reading the NCERT book for Class 8 Science to build a baseline understanding.
- Independent Testing: Attempt assignment questions unassisted, then verify work using provided answer keys.
- Supplementary Aids: Leverage revision notes and worksheets whenever you encounter difficult topics.
FAQs
You can download free PDF assignments for Class 8 Science Science And Technology from StudiesToday.com. These practice sheets have been updated for the 2026-27 session covering all concepts from latest NCERT textbook.
Yes, our teachers have given solutions for all questions in the Class 8 Science Science And Technology assignments. This will help you to understand step-by-step methodology to get full marks in school tests and exams.
Yes. These assignments are designed as per the latest CBSE syllabus for 2026. We have included huge variety of question formats such as MCQs, Case-study based questions and important diagram-based problems found in Science And Technology.
Practicing topicw wise assignments will help Class 8 students understand every sub-topic of Science And Technology. Daily practice will improve speed, accuracy and answering competency-based questions.
Yes, all printable assignments for Class 8 Science Science And Technology are available for free download in mobile-friendly PDF format.