CBSE Class 10 Science Practical Exam Instructions:

The CBSE Class 10 Science Practical Exam is an essential part of the curriculum, which aims to develop practical skills and scientific knowledge among students. Here are some specific instructions to follow during the exam:

1. Read the instructions:
- Begin by carefully reading the instructions provided in the question paper.
- Understand the experiment, its objectives, and the apparatus required.

2. Plan the experiment:
- Before starting the practical, plan the steps you will follow to conduct the experiment.
- Make a note of the materials required and their quantities.
- Organize the apparatus in a systematic manner.

3. Safety precautions:
- Always wear safety goggles and a lab coat to protect yourself during the experiment.
- Handle chemicals and apparatus with care to avoid accidents.
- Dispose of waste materials properly according to the given instructions.
- Follow all safety guidelines provided by the examiner.

4. Record observations:
- Maintain a well-labeled observation table to record your observations systematically.
- Note down the readings, measurements, and other relevant data accurately.
- Use appropriate units, symbols, and labels.

5. Draw neat and labeled diagrams:
- Draw diagrams neatly and label all the important parts.
- Use a ruler for straight lines and a compass for circles, if required.
- Make sure the diagram is proportionate and visually appealing.

6. Calculate results:
- Perform necessary calculations using the recorded data.
- Use appropriate formulas and equations to derive results.
- Round off the final answers to the required significant figures.

7. Present the data:
- Organize the data collected during the experiment in a presentable manner.
- Use tables, graphs, charts, or diagrams wherever necessary to represent the data effectively.
- Present the data in a clear and concise manner.

8. Answer in complete sentences:
- While answering questions based on the experiment, provide detailed explanations in complete sentences.
- Use scientific terminology and appropriate vocabulary.
- Elaborate on the concepts and principles involved.

9. Clean up:
- After completing the experiment, clean up the workspace and apparatus.
- Dispose of waste materials properly according to the given instructions.
- Leave the laboratory clean and tidy.

10. Final submission:
- Review your practical work before submission.
- Make sure all the questions and tasks have been completed as per the instructions.
- Submit your practical record, observation table, diagrams, and calculations as required.

By following these instructions, students can ensure a systematic and organized approach to their CBSE Class 10 Science Practical Exam, leading to accurate results and a better understanding of the subject.