Join WhatsApp ChannelDaily MCQs & Exam Updates
PaperMCQs FeaturedPractice Smarter. Score Higher.Solved MCQs, explanations and exam-focused preparation in one place.Start Practicing

Everyday Science MCQs

387 Questions Subject Test
Subject Preparation Guide

Prepare Everyday Science with confidence

Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.

Human BodyEnergyEnvironmentScientific Inventions
Important for general science portions of CSS, PMS, FPSC and provincial tests.
Everyday Science preparation illustration
Subject Test

Test your Everyday Science preparation

Questions are tracked as practiced when you open Show Answer & Explanation. Tracking stays only in this browser tab and no subject-test result is saved.

Practiced MCQs
0 / 387
Use the MCQs you already prepared, or launch a random test from the full subject bank.
No login required Result is not saved Choose your own MCQ count & timer
Choose your test mode
Choose any number up to 387 available MCQs.
Enter 0 for no timer, or choose 1–300 minutes.
Tip: prepare some MCQs first, then start a quick self-check from My Practiced MCQs to test exactly what you studied.
321
Easy fpsc ppsc nts

Which common household chemical reaction produces a foaming effect often used in classroom volcano experiments?

  • A Baking soda and vinegar reaction
  • B Salt dissolving in water
  • C Sugar caramelizing
  • D Ice melting
Permalink
Correct Answer: Option A — Baking soda and vinegar reaction
Explanation: The baking soda and vinegar reaction produces carbon dioxide gas creating a foaming eruption effect commonly used in classroom volcano demonstrations to illustrate acid base chemistry.
Submitted by: PaperMCQs
322
Hard fpsc ppsc nts

Which gas is primarily responsible for causing the bends in deep sea divers who ascend too quickly?

  • A Oxygen
  • B Nitrogen
  • C Carbon dioxide
  • D Helium
Permalink
Correct Answer: Option B — Nitrogen
Explanation: Nitrogen dissolved in the bloodstream under high pressure can form bubbles if a diver ascends too quickly causing decompression sickness commonly known as the bends.
Submitted by: PaperMCQs
323
Medium fpsc ppsc nts

Which common kitchen ingredient is used as a natural indicator to test acidity or basicity in simple science experiments?

  • A Red cabbage extract
  • B Table salt
  • C Sugar
  • D Cooking oil
Permalink
Correct Answer: Option A — Red cabbage extract
Explanation: Red cabbage extract contains a natural pigment called anthocyanin that changes color depending on pH making it a popular natural indicator for testing acidity or basicity at home.
Submitted by: PaperMCQs
324
Medium fpsc ppsc nts

Which common everyday substance is classified as a strong acid frequently used in car batteries?

  • A Acetic acid
  • B Sulfuric acid
  • C Citric acid
  • D Carbonic acid
Permalink
Correct Answer: Option B — Sulfuric acid
Explanation: Sulfuric acid is a strong acid commonly used as the electrolyte in lead acid car batteries enabling the chemical reactions necessary for storing and releasing electrical energy.
Submitted by: PaperMCQs
325
Medium fpsc ppsc nts

Which type of fat is generally considered healthier and is commonly found in foods like olive oil and nuts?

  • A Saturated fat
  • B Trans fat
  • C Unsaturated fat
  • D Hydrogenated fat
Permalink
Correct Answer: Option C — Unsaturated fat
Explanation: Unsaturated fats commonly found in olive oil nuts and avocados are generally considered healthier than saturated or trans fats as they support heart health when consumed in moderation.
Submitted by: PaperMCQs
326
Easy fpsc ppsc nts

Which macronutrient is essential for building and repairing body tissues such as muscles?

  • A Carbohydrates
  • B Fats
  • C Proteins
  • D Fiber
Permalink
Correct Answer: Option C — Proteins
Explanation: Proteins are essential macronutrients required for building and repairing body tissues including muscles skin and organs as they provide the amino acids needed for cellular growth.
Submitted by: PaperMCQs
327
Easy fpsc ppsc nts

Which macronutrient is the body's primary and most efficient source of quick energy?

  • A Proteins
  • B Fats
  • C Carbohydrates
  • D Vitamins
Permalink
Correct Answer: Option C — Carbohydrates
Explanation: Carbohydrates serve as the body's primary and most efficient source of quick energy as they are readily broken down into glucose which cells use for immediate fuel.
Submitted by: PaperMCQs
328
Easy fpsc ppsc nts

Which common food item is a good source of dietary fiber important for digestive health?

  • A White bread
  • B Whole grains
  • C Refined sugar
  • D Processed cheese
Permalink
Correct Answer: Option B — Whole grains
Explanation: Whole grains are an excellent source of dietary fiber which supports healthy digestion regulates blood sugar levels and helps maintain overall gastrointestinal health.
Submitted by: PaperMCQs
329
Medium fpsc ppsc nts

Which everyday observation demonstrates the concept of inertia in physics?

  • A A ball rolling downhill
  • B A seated passenger jerking forward during sudden braking
  • C Water boiling at high altitude
  • D A magnet attracting iron filings
Permalink
Correct Answer: Option B — A seated passenger jerking forward during sudden braking
Explanation: A seated passenger jerking forward during sudden braking demonstrates inertia as the body continues moving forward due to its tendency to resist changes in its state of motion.
Submitted by: PaperMCQs
330
Medium fpsc ppsc nts

Which natural process explains how mountains gradually wear down over long periods of time?

  • A Erosion
  • B Deposition
  • C Sedimentation
  • D Weathering and erosion
Permalink
Correct Answer: Option D — Weathering and erosion
Explanation: Weathering and erosion together explain how mountains gradually wear down over long periods through physical chemical and biological processes that break down and transport rock material.
Submitted by: PaperMCQs
331
Easy fpsc ppsc nts

Which renewable energy source generates electricity by harnessing the flow of water through dams or rivers?

  • A Solar energy
  • B Wind energy
  • C Hydropower
  • D Geothermal energy
Permalink
Correct Answer: Option C — Hydropower
Explanation: Hydropower generates electricity by harnessing the kinetic energy of flowing water typically through dams or river turbines making it one of the oldest renewable energy sources used worldwide.
Submitted by: PaperMCQs
332
Easy fpsc ppsc nts

Which renewable energy source uses moving air currents to generate electricity through turbines?

  • A Solar energy
  • B Wind energy
  • C Hydropower
  • D Biomass energy
Permalink
Correct Answer: Option B — Wind energy
Explanation: Wind energy uses moving air currents to rotate large turbine blades which drive generators to produce electricity offering a clean and increasingly cost effective renewable power source.
Submitted by: PaperMCQs
333
Easy fpsc ppsc nts

Which renewable energy source harnesses sunlight directly to generate electricity?

  • A Wind energy
  • B Solar energy
  • C Hydropower
  • D Geothermal energy
Permalink
Correct Answer: Option B — Solar energy
Explanation: Solar energy harnesses sunlight directly using photovoltaic cells to generate electricity providing a clean and renewable alternative to fossil fuel based power generation.
Submitted by: PaperMCQs
334
Medium fpsc ppsc nts

Which gas commonly used in refrigerators and air conditioners was historically linked to ozone layer depletion?

  • A Carbon dioxide
  • B Chlorofluorocarbons
  • C Methane
  • D Nitrogen
Permalink
Correct Answer: Option B — Chlorofluorocarbons
Explanation: Chlorofluorocarbons CFCs once widely used as refrigerants were linked to ozone layer depletion as they release chlorine atoms that break down ozone molecules in the stratosphere.
Submitted by: PaperMCQs
335
Medium fpsc ppsc nts

Which everyday phenomenon demonstrates the principle of capillary action in plants?

  • A Photosynthesis
  • B Transpiration
  • C Water rising through plant stems
  • D Respiration
Permalink
Correct Answer: Option C — Water rising through plant stems
Explanation: Capillary action allows water to rise through narrow xylem vessels in plant stems against gravity helping transport water and nutrients from roots to leaves throughout the plant.
Submitted by: PaperMCQs
336
Medium fpsc ppsc nts

Which property of water allows insects like water striders to walk on its surface?

  • A Viscosity
  • B Surface tension
  • C Density
  • D Capillarity
Permalink
Correct Answer: Option B — Surface tension
Explanation: Surface tension is the cohesive force between water molecules at the surface that creates a thin elastic like layer allowing lightweight insects such as water striders to walk on water.
Submitted by: PaperMCQs
337
Medium fpsc ppsc nts

Which gas is responsible for the characteristic smell often associated with rain after a dry spell?

  • A Methane
  • B Ozone
  • C Petrichor compounds
  • D Sulfur dioxide
Permalink
Correct Answer: Option C — Petrichor compounds
Explanation: The distinctive earthy smell after rain known as petrichor is caused by plant oils geosmin released by soil bacteria and ozone combining in the air during rainfall.
Submitted by: PaperMCQs
338
Easy fpsc ppsc nts

Which everyday chemical reaction is responsible for rusting of iron objects?

  • A Oxidation
  • B Reduction
  • C Neutralization
  • D Sublimation
Permalink
Correct Answer: Option A — Oxidation
Explanation: Rusting is an oxidation reaction where iron reacts with oxygen and moisture in the air forming iron oxide which weakens and corrodes metal structures over time.
Submitted by: PaperMCQs
339
Hard fpsc ppsc nts

Which scale is used to estimate wind speed based on observed sea or land conditions without instruments?

  • A Richter scale
  • B Beaufort scale
  • C Fujita scale
  • D Saffir-Simpson scale
Permalink
Correct Answer: Option B — Beaufort scale
Explanation: The Beaufort scale estimates wind speed by observing its effects on sea waves and land conditions providing a practical method for assessing wind force without specialized instruments.
Submitted by: PaperMCQs
340
Hard fpsc ppsc nts

Which scale is commonly used to measure the intensity of hurricanes and tropical cyclones?

  • A Richter scale
  • B Saffir-Simpson scale
  • C Beaufort scale
  • D Fujita scale
Permalink
Correct Answer: Option B — Saffir-Simpson scale
Explanation: The Saffir-Simpson scale categorizes hurricanes into five categories based on sustained wind speed helping predict potential damage and guide disaster preparedness measures.
Submitted by: PaperMCQs
Practiced MCQs0 / 387