Science — CBSE Class 10 board question

Two contraceptive methods:

1. Mechanical barrier (Condom): A covering placed on the penis (or inside the vagina) that prevents sperm from reaching the egg, thus avoiding fertilisation. It also helps prevent sexually transmitted diseases.

1. Hormonal pills: Oral pills that change the hormonal balance of the body so that eggs are not released, preventing fertilisation. However, they may cause side effects.

Source: Chapter 7, Section 7.3.3 – Reproductive Health

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• This is a 2-mark question, so name two methods and give a brief explanation of each (one line each).
• The textbook lists several methods (barrier, hormonal pills, copper-T, surgical); pick any two and explain the mechanism (how they prevent pregnancy).
• Examiners award ½ mark for naming and ½ mark for explaining each method — so never just list names without explanation.
• Avoid writing only surgical methods, as those need slightly more detail; barrier + hormonal is the safest combination for a 2-mark answer.