which is the best way to write a science exam?

Always be positive.
Have confidence in your preparation and keep calm.
• Read the questions thoroughly.
• Never break the series of answers. You can answer from the first question to the last question, or the last question to the first question. But never jumble the series.
• Always start with the questions that carry more marks and which might be tough for you so that you have ample time to think.
• If you feel you're stuck with a question, don't panic. Try and think of the answer with a calm mind. If you still feel that the answer isn't occurring to you, mark that question on your question paper and move on the next question. You can get back to the question if you have time in hand.
• Never think about another question's answer while answering a question. It will confuse you and you might make a mistake. Approach each question individually.
• Make the clean and well labelled diagrams where ever necessary.
• Write the answer in proper paragraphs and points.
• In case of numericals, write proper steps to get the answer.
• Last but not the Least, definitely revise the paper if you have time.
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