Introduction:
In a science exam, it can be beneficial to underline important points. Underlining helps to emphasize key ideas, concepts, or facts, making it easier for the examiner to identify the relevant information and for the student to present their knowledge effectively. However, whether underlining is necessary or not may depend on the specific format and requirements of the exam.

Importance of Underlining:
Underlining key points in a science exam has several advantages:

1. Enhances readability: Underlining important points helps to improve the overall readability of the answer sheet. It makes it easier for the examiner to quickly scan the responses and locate the essential information.

2. Highlights key concepts: By underlining important points, students can highlight the core concepts, theories, or principles that are necessary for a comprehensive understanding of the subject matter. This not only makes it easier for the examiner to assess the student's knowledge but also helps the student to structure their answers effectively.

3. Organizes information: Underlining important points can aid in organizing information within the answer sheet. By visually separating the crucial details from the supporting content, the student can create a clear and coherent response that is easy to follow.

4. Increases clarity: Underlining important points helps to eliminate ambiguity and confusion in the answers. It ensures that the most critical information is readily identifiable, reducing the chances of misinterpretation by the examiner.

5. Improves time management: By underlining important points, students can save time during the exam. It allows them to quickly refer back to the key ideas or concepts without having to reread the entire response, enabling them to allocate their time more efficiently.

When to Underline:
While underlining can be beneficial, it is essential to use it selectively and wisely. Here are a few guidelines to consider:

1. Focus on key information: Underline only the most important points, concepts, or facts that directly address the question. Avoid excessive underlining, as it may distract the examiner and weaken the overall impact.

2. Use underlining as a supplement: Underlining should not replace a well-structured and coherent answer. It should be used as a supplement to highlight crucial details and emphasize their significance.

3. Consider the exam format: Different exam formats have different requirements. If the exam includes multiple-choice questions, short answer questions, or structured questions with specified sections, it may not be necessary to underline. However, if the exam requires longer, essay-type responses, underlining can be more beneficial.

4. Be consistent: If you choose to underline important points, be consistent throughout the exam. Establish a clear and standardized method to underline, such as using a single line or double lines consistently.

In conclusion, underlining important points in a science exam can be advantageous as it enhances readability, highlights key concepts, organizes information, increases clarity, and improves time management. However, it is essential to use underlining selectively, focusing on key information, and considering the specific exam format. Consistency in underlining is also crucial to maintain clarity and professionalism in the answers.

Not necessary but it is effective