Everyday Science for PPSC and competitive papers

Everyday Science MCQs draw from biology, chemistry, physics, and general environment. The mix is broad but not deep. You do not need degree-level knowledge. You need accurate recall of the most common facts.

Biology: human body systems including digestive, circulatory, respiratory, and nervous systems, vitamins and their deficiency diseases, common bacteria and viruses, plant biology basics, and genetics fundamentals.

Chemistry: states of matter, atomic structure basics, common acids and bases including the pH scale, elements and their symbols, and the Periodic Table — at least the first twenty elements in order. Rust, photosynthesis equation, and water formula are legitimately tested.

Physics in MCQ papers focuses on simple machines, light including reflection, refraction, and spectrum, sound with frequency and pitch, electricity with basic circuits, and Newton laws. Sound travels faster in solids than liquids, and faster in liquids than gas — this specific ordering is frequently tested.

Environmental science: greenhouse gases including carbon dioxide, methane, and nitrous oxide, the ozone layer and CFC damage, renewable versus non-renewable energy, ecosystems and food chains.

Astronomy basics also appear regularly. Space-related current events including new missions and discoveries are fair game in current-affairs sections.

Science MCQs reward accurate recall more than deep understanding. A one-page fact sheet per major topic committed to memory beats reading three chapters. Make yourself write the fact sheet from memory after one day; whatever you cannot recall is your revision target.

Connect facts where you can. Vitamin C helps absorb iron, so its deficiency affects energy. Ozone blocks UV radiation, which is why CFC damage is serious. Chains of consequence are easier to remember than isolated facts.

After building the sheet, run timed science-only drills. The pressure separates retained knowledge from vague familiarity.