CBSE Class 10 Answered

Tips to score high in Class 10 Science Board Exams:

For Physics

• Understand the sign conventions and rules for drawing ray diagrams.
• Note down the important formulae and equations and memorise them to solve numerical problems.
• Practice the numerical questions and revise the concepts as this is the key to ace Physics.
• Speed with accuracy in solving problems can only be acquired through an in-depth study of the subject and extensive practice.

For Chemistry

• Practise the balancing of chemical equations (2 marks).
• Questions on modern periodic table and reactivity series cannot be missed. So study the Periodic Classification chapter really well (2/3 marks).
• Study the preparation of different types of salts (any one salt preparation with the chemical formula etc. is a sure-shot question of 3 marks).
• pH-related questions may be optional based (2marks).
• Questions on alloys and corrosion will be part of practical based questions (2 marks).

For Biology

• Practise the diagrams (to name a few: asexual reproduction, male and female reproductive systems, the human heart, human excretory system, double circulation) – wherever necessary
• Solve Mendel’s heredity crosses with stress on the laws of Mendel (3 marks)
• Remember the concepts on ‘Food Chain’, ‘Significance of Food Chain’, ‘10%Law’, ‘Evolution of Cabbage’, ‘Water Harvesting Technique’ and ‘Different stakeholders’
• Long answer questions on ‘Life Processes’ (any human system should not be missed out)