Everyday Science Solved MCQS

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Your Score: 0 / 100 Category Count Correct Answers 0 Wrong Answers 0 Percentage 0% Restart Quiz Support the Developer If you enjoyed this quiz, consider making a small donation to help me create more tools! Donate Now Bank Details Name: Majid Farooq Bank: Habib Bank Limited Account Number/IBAN: PK40HABB0001947100292703 Country: Pakistan Developed by Majid Farooq majidfarooq295@gmail.com document.addEventListener('DOMContentLoaded', function() { // Array of Everyday Science questions const questions = [ { question: "What is the largest organ in the human body?", options: ["Heart", "Brain", "Skin", "Liver"], answer: "Skin" }, { question: "Which planet is known as the 'Red Planet'?", options: ["Venus", "Mars", "Jupiter", "Saturn"], answer: "Mars" }, { question: "What is the chemical symbol for gold?", options: ["Au", "Ag", "Fe", "Pb"], answer: "Au" }, { question: "What is the speed of light?", options: ["300,000 km/s", "150,000 km/s", "500,000 km/s", "30,000 km/s"], answer: "300,000 km/s" }, { question: "Which gas is most abundant in Earth's atmosphere?", options: ["Oxygen", "Carbon Dioxide", "Nitrogen", "Argon"], answer: "Nitrogen" }, { question: "What force keeps planets in orbit around the sun?", options: ["Friction", "Gravity", "Magnetism", "Air Pressure"], answer: "Gravity" }, { question: "The study of the universe is called:", options: ["Geology", "Biology", "Cosmology", "Meteorology"], answer: "Cosmology" }, { question: "Which of the following is a unit of energy?", options: ["Volt", "Joule", "Ampere", "Watt"], answer: "Joule" }, { question: "What is the primary function of red blood cells?", options: ["Fighting infection", "Carrying oxygen", "Clotting blood", "Producing hormones"], answer: "Carrying oxygen" }, { question: "What is the process of a solid turning directly into a gas?", options: ["Condensation", "Evaporation", "Sublimation", "Melting"], answer: "Sublimation" }, { question: "What is the primary component of the sun?", options: ["Oxygen", "Hydrogen", "Helium", "Nitrogen"], answer: "Hydrogen" }, { question: "The process by which plants make their own food is called:", options: ["Respiration", "Transpiration", "Photosynthesis", "Digestion"], answer: "Photosynthesis" }, { question: "What is the boiling point of water in Celsius?", options: ["0°C", "50°C", "100°C", "212°C"], answer: "100°C" }, { question: "The smallest unit of an element is a(n):", options: ["Molecule", "Atom", "Proton", "Cell"], answer: "Atom" }, { question: "Which gas do plants absorb from the atmosphere?", options: ["Oxygen", "Carbon Dioxide", "Hydrogen", "Nitrogen"], answer: "Carbon Dioxide" }, { question: "What is the main function of the heart?", options: ["To filter blood", "To pump blood", "To absorb nutrients", "To produce hormones"], answer: "To pump blood" }, { question: "What is a 'light-year' a measure of?", options: ["Time", "Distance", "Speed", "Weight"], answer: "Distance" }, { question: "What is the chemical symbol for table salt?", options: ["H2O", "O2", "NaCl", "CO2"], answer: "NaCl" }, { question: "Sound travels fastest through which medium?", options: ["Air", "Water", "Vacuum", "Solid"], answer: "Solid" }, { question: "What is the densest planet in our solar system?", options: ["Mars", "Jupiter", "Earth", "Saturn"], answer: "Earth" }, { question: "What is the powerhouse of the cell?", options: ["Nucleus", "Ribosome", "Mitochondrion", "Cell wall"], answer: "Mitochondrion" }, { question: "What is the most common element in the universe?", options: ["Oxygen", "Helium", "Nitrogen", "Hydrogen"], answer: "Hydrogen" }, { question: "Which type of energy is stored in a battery?", options: ["Thermal", "Kinetic", "Chemical", "Potential"], answer: "Chemical" }, { question: "What is the study of weather called?", options: ["Geology", "Meteorology", "Climatology", "Oceanography"], answer: "Meteorology" }, { question: "What is the chemical formula for water?", options: ["H2O", "CO2", "O3", "NaCl"], answer: "H2O" }, { question: "Which layer of the atmosphere contains the ozone layer?", options: ["Troposphere", "Stratosphere", "Mesosphere", "Thermosphere"], answer: "Stratosphere" }, { question: "What is the largest living animal on Earth?", options: ["Elephant", "Blue Whale", "Giraffe", "Polar Bear"], answer: "Blue Whale" }, { question: "What is the hardest natural substance on Earth?", options: ["Iron", "Diamond", "Quartz", "Granite"], answer: "Diamond" }, { question: "The process of a liquid turning into a gas is called:", options: ["Condensation", "Evaporation", "Sublimation", "Melting"], answer: "Evaporation" }, { question: "What is the primary component of natural gas?", options: ["Propane", "Butane", "Methane", "Ethane"], answer: "Methane" }, { question: "What is the smallest bone in the human body?", options: ["Stapes", "Femur", "Patella", "Tibia"], answer: "Stapes" }, { question: "How many bones are in the adult human body?", options: ["106", "206", "306", "406"], answer: "206" }, { question: "What is the pH level of a neutral substance?", options: ["0", "7", "14", "10"], answer: "7" }, { question: "Which planet is closest to the sun?", options: ["Venus", "Earth", "Mercury", "Mars"], answer: "Mercury" }, { question: "What causes a solar eclipse?", options: ["Earth blocking the sun", "Moon blocking the sun", "Sun blocking the Earth", "Stars blocking the sun"], answer: "Moon blocking the sun" }, { question: "What is the function of the retina in the human eye?", options: ["To focus light", "To protect the eye", "To detect light", "To produce tears"], answer: "To detect light" }, { question: "Which scientist developed the theory of relativity?", options: ["Isaac Newton", "Galileo Galilei", "Albert Einstein", "Stephen Hawking"], answer: "Albert Einstein" }, { question: "What is the most abundant metal in the Earth's crust?", options: ["Iron", "Aluminum", "Copper", "Gold"], answer: "Aluminum" }, { question: "The Richter scale is used to measure the magnitude of:", options: ["Wind speed", "Earthquakes", "Tornadoes", "Hurricanes"], answer: "Earthquakes" }, { question: "What is a 'quark'?", options: ["A type of cell", "A fundamental particle", "A type of star", "A sound wave"], answer: "A fundamental particle" }, { question: "What is the main component of glass?", options: ["Sand", "Clay", "Water", "Limestone"], answer: "Sand" }, { question: "Which vitamin is synthesized by sunlight?", options: ["Vitamin A", "Vitamin C", "Vitamin D", "Vitamin B12"], answer: "Vitamin D" }, { question: "What is the name of the galaxy our solar system is in?", options: ["Andromeda", "Triangulum", "Centaurus A", "Milky Way"], answer: "Milky Way" }, { question: "What is the study of fungi called?", options: ["Botany", "Virology", "Mycology", "Zoology"], answer: "Mycology" }, { question: "The ozone hole is primarily caused by:", options: ["Carbon dioxide", "CFCs", "Methane", "Nitrogen"], answer: "CFCs" }, { question: "What is the speed of sound in dry air at 20°C?", options: ["100 m/s", "343 m/s", "500 m/s", "1000 m/s"], answer: "343 m/s" }, { question: "What is the unit of electric current?", options: ["Volt", "Ohm", "Ampere", "Watt"], answer: "Ampere" }, { question: "Which of the following is an example of a reptile?", options: ["Frog", "Snake", "Salamander", "Whale"], answer: "Snake" }, { question: "What is the chemical symbol for iron?", options: ["Ir", "Fe", "In", "Au"], answer: "Fe" }, { question: "What is the term for a group of stars forming a pattern?", options: ["Galaxy", "Nebula", "Constellation", "Asteroid"], answer: "Constellation" }, { question: "What is the main function of the kidneys?", options: ["Digestion", "Filtering blood", "Pumping blood", "Breathing"], answer: "Filtering blood" }, { question: "The Earth's atmosphere is divided into how many main layers?", options: ["3", "4", "5", "6"], answer: "5" }, { question: "What is a compound?", options: ["A mixture of elements", "A single atom", "Two or more elements chemically bonded", "A type of molecule"], answer: "Two or more elements chemically bonded" }, { question: "The 'Theory of Evolution' was proposed by:", options: ["Charles Darwin", "Gregor Mendel", "Louis Pasteur", "Marie Curie"], answer: "Charles Darwin" }, { question: "What is the largest bone in the human body?", options: ["Femur", "Humerus", "Tibia", "Fibula"], answer: "Femur" }, { question: "What is the process of water vapor turning into a liquid?", options: ["Condensation", "Evaporation", "Sublimation", "Melting"], answer: "Condensation" }, { question: "Which instrument is used to measure atmospheric pressure?", options: ["Thermometer", "Barometer", "Anemometer", "Seismograph"], answer: "Barometer" }, { question: "The Earth's core is primarily made of what two metals?", options: ["Iron and Nickel", "Gold and Silver", "Aluminum and Copper", "Lead and Zinc"], answer: "Iron and Nickel" }, { question: "What is the common name for the larynx?", options: ["Windpipe", "Voice box", "Gullet", "Esophagus"], answer: "Voice box" }, { question: "What is the main purpose of a transformer?", options: ["To store energy", "To change voltage", "To generate power", "To measure resistance"], answer: "To change voltage" }, { question: "How many planets are in our solar system?", options: ["7", "8", "9", "10"], answer: "8" }, { question: "What is the name of the process that powers the sun?", options: ["Nuclear Fission", "Chemical Reaction", "Nuclear Fusion", "Combustion"], answer: "Nuclear Fusion" }, { question: "What is the scientific name for the collarbone?", options: ["Scapula", "Clavicle", "Patella", "Sternum"], answer: "Clavicle" }, { question: "What is the unit of resistance in an electrical circuit?", options: ["Volt", "Ampere", "Ohm", "Joule"], answer: "Ohm" }, { question: "What is the study of rocks called?", options: ["Biology", "Geology", "Meteorology", "Ecology"], answer: "Geology" }, { question: "Which organ produces insulin?", options: ["Liver", "Stomach", "Pancreas", "Kidney"], answer: "Pancreas" }, { question: "The phenomenon of a rainbow is due to:", options: ["Reflection of light", "Refraction of light", "Diffraction of light", "Scattering of light"], answer: "Refraction of light" }, { question: "What is the chemical symbol for oxygen?", options: ["Ox", "O", "Oxy", "Oz"], answer: "O" }, { question: "What is the name for the protective layer of gas surrounding the Earth?", options: ["Hydrosphere", "Lithosphere", "Atmosphere", "Biosphere"], answer: "Atmosphere" }, { question: "What is the process of separating a liquid from a solid by pouring?", options: ["Filtration", "Distillation", "Decantation", "Evaporation"], answer: "Decantation" }, { question: "What is the most common state of matter in the universe?", options: ["Solid", "Liquid", "Gas", "Plasma"], answer: "Plasma" }, { question: "The largest volcano in the solar system is on which planet?", options: ["Mars", "Earth", "Jupiter", "Venus"], answer: "Mars" }, { question: "What is the unit for measuring frequency?", options: ["Watt", "Hertz", "Newton", "Pascal"], answer: "Hertz" }, { question: "Which part of the brain is responsible for balance and coordination?", options: ["Cerebrum", "Cerebellum", "Medulla", "Brainstem"], answer: "Cerebellum" }, { question: "What is the speed of sound relative to the speed of light?", options: ["Slower", "Faster", "Same", "Varies"], answer: "Slower" }, { question: "Which of these is not a fossil fuel?", options: ["Coal", "Petroleum", "Natural Gas", "Uranium"], answer: "Uranium" }, { question: "What is the main function of the nose?", options: ["Smell and breathing", "Taste and smell", "Hearing and breathing", "Breathing and talking"], answer: "Smell and breathing" }, { question: "What is a group of fish called?", options: ["A flock", "A herd", "A school", "A pack"], answer: "A school" }, { question: "The study of the human mind and behavior is called:", options: ["Sociology", "Psychology", "Anthropology", "Archaeology"], answer: "Psychology" }, { question: "What is the chemical symbol for carbon?", options: ["Ca", "Co", "C", "Cr"], answer: "C" }, { question: "What is the name of the first man-made satellite launched into space?", options: ["Apollo 11", "Hubble", "Sputnik 1", "Voyager 1"], answer: "Sputnik 1" }, { question: "Which blood type is considered the universal donor?", options: ["A", "B", "AB", "O"], answer: "O" }, { question: "What is the unit of force?", options: ["Joule", "Watt", "Newton", "Pascal"], answer: "Newton" }, { question: "What is the study of earthquakes called?", options: ["Seismology", "Vulcanology", "Geophysics", "Meteorology"], answer: "Seismology" }, { question: "Which of the following is a nocturnal animal?", options: ["Lion", "Dog", "Owl", "Horse"], answer: "Owl" }, { question: "What is the name of the long-term changes in Earth's average temperature?", options: ["Weather", "Climate Change", "Atmospheric pressure", "Tectonic shifts"], answer: "Climate Change" }, { question: "What is the chemical name for laughing gas?", options: ["Nitrous Oxide", "Carbon Dioxide", "Methane", "Ammonia"], answer: "Nitrous Oxide" }, { question: "What is the freezing point of water in Fahrenheit?", options: ["0°F", "32°F", "100°F", "212°F"], answer: "32°F" }, { question: "Which planet is famous for its rings?", options: ["Mars", "Jupiter", "Neptune", "Saturn"], answer: "Saturn" }, { question: "The process of a liquid turning into a solid is called:", options: ["Melting", "Freezing", "Boiling", "Sublimation"], answer: "Freezing" }, { question: "The study of living organisms is called:", options: ["Geology", "Astronomy", "Biology", "Chemistry"], answer: "Biology" }, { question: "What is the approximate percentage of water on Earth's surface?", options: ["50%", "71%", "90%", "25%"], answer: "71%" }, { question: "Which organ produces bile?", options: ["Stomach", "Pancreas", "Liver", "Spleen"], answer: "Liver" }, { question: "What is the brightest planet in the night sky?", options: ["Mars", "Venus", "Jupiter", "Mercury"], answer: "Venus" }, { question: "What is the unit of electrical power?", options: ["Volt", "Ampere", "Ohm", "Watt"], answer: "Watt" }, { question: "Which of these is a non-renewable energy source?", options: ["Solar", "Wind", "Coal", "Hydro"], answer: "Coal" }, { question: "What is the primary gas in the air we breathe?", options: ["Oxygen", "Nitrogen", "Carbon Dioxide", "Argon"], answer: "Nitrogen" }, { question: "The process of a gas turning into a liquid is called:", options: ["Condensation", "Evaporation", "Sublimation", "Melting"], answer: "Condensation" }, { question: "What is the common name for an arachnid with eight legs?", options: ["Ant", "Spider", "Beetle", "Centipede"], answer: "Spider" }, { question: "What is the most common mineral on Earth?", options: ["Quartz", "Feldspar", "Mica", "Talc"], answer: "Feldspar" }, { question: "What is a 'neutron star'?", options: ["A type of galaxy", "A type of black hole", "The dense core of a collapsed star", "A type of asteroid"], answer: "The dense core of a collapsed star" }, { question: "The chemical symbol 'Na' stands for which element?", options: ["Gold", "Sodium", "Nitrogen", "Silver"], answer: "Sodium" }, { question: "Which planet has the 'Great Red Spot'?", options: ["Mars", "Jupiter", "Saturn", "Neptune"], answer: "Jupiter" }, { question: "The human skeleton is part of which system?", options: ["Circulatory", "Respiratory", "Nervous", "Skeletal"], answer: "Skeletal" }, { question: "What is the process of plants releasing water vapor?", options: ["Transpiration", "Photosynthesis", "Respiration", "Evaporation"], answer: "Transpiration" }, { question: "What is the main metal in the element 'Brass'?", options: ["Iron", "Copper", "Gold", "Lead"], answer: "Copper" }, { question: "What is a 'solar flare'?", options: ["A type of star", "An explosion on the sun's surface", "A meteor shower", "A type of black hole"], answer: "An explosion on the sun's surface" }, { question: "Which part of the cell controls all its activities?", options: ["Mitochondria", "Nucleus", "Cytoplasm", "Cell membrane"], answer: "Nucleus" }, { question: "What is the primary cause of tides?", options: ["Earth's rotation", "Moon's gravity", "Solar winds", "Ocean currents"], answer: "Moon's gravity" }, { question: "What is the study of the Earth's oceans called?", options: ["Geology", "Meteorology", "Oceanography", "Seismology"], answer: "Oceanography" }, { question: "Which gas is responsible for the greenhouse effect?", options: ["Oxygen", "Carbon Dioxide", "Nitrogen", "Hydrogen"], answer: "Carbon Dioxide" }, { question: "The largest planet in our solar system is:", options: ["Earth", "Saturn", "Jupiter", "Uranus"], answer: "Jupiter" }, { question: "What is the process of a liquid turning directly into a solid?", options: ["Melting", "Freezing", "Deposition", "Sublimation"], answer: "Freezing" }, { question: "Which type of wave is used in a microwave oven?", options: ["Radio waves", "Microwaves", "Infrared waves", "UV rays"], answer: "Microwaves" }, { question: "What is the smallest planet in our solar system?", options: ["Mercury", "Mars", "Pluto", "Earth"], answer: "Mercury" }, { question: "What is the chemical symbol for silver?", options: ["Au", "Ag", "Si", "Fe"], answer: "Ag" }, { question: "The phenomenon of light bending as it passes from one medium to another is called:", options: ["Reflection", "Refraction", "Diffraction", "Absorption"], answer: "Refraction" }, { question: "What is the main function of the cerebrum?", options: ["Breathing", "Memory and thought", "Balance", "Digestion"], answer: "Memory and thought" }, { question: "What is the name of the process that breaks down food?", options: ["Respiration", "Photosynthesis", "Digestion", "Absorption"], answer: "Digestion" }, { question: "What is the main component of a star?", options: ["Rock", "Water", "Gas", "Metal"], answer: "Gas" }, { question: "What is the study of earthquakes called?", options: ["Seismology", "Meteorology", "Geology", "Oceanography"], answer: "Seismology" }, { question: "Which of the following is a unit of mass?", options: ["Liter", "Meter", "Gram", "Second"], answer: "Gram" }, { question: "What is a 'black hole'?", options: ["A collapsed star with immense gravity", "A type of galaxy", "A new star forming", "A gas cloud"], answer: "A collapsed star with immense gravity" }, { question: "What is the main function of the small intestine?", options: ["Water absorption", "Digestion and nutrient absorption", "Waste removal", "Pumping blood"], answer: "Digestion and nutrient absorption" }, { question: "What is the unit for measuring temperature?", options: ["Kelvin", "Joule", "Watt", "Hertz"], answer: "Kelvin" }, { question: "What is the most common gas in Earth's atmosphere?", options: ["Oxygen", "Nitrogen", "Carbon dioxide", "Hydrogen"], answer: "Nitrogen" }, { question: "What is the main function of chlorophyll in plants?", options: ["To give plants color", "To absorb sunlight for photosynthesis", "To transport water", "To protect the plant"], answer: "To absorb sunlight for photosynthesis" }, { question: "What is the name for a substance that can be dissolved in a solvent?", options: ["Solute", "Solution", "Suspension", "Mixture"], answer: "Solute" } ]; let currentQuestionIndex = 0; let score = 0; let correctCount = 0; let wrongCount = 0; const quizArea = document.getElementById('quiz-area'); const resultArea = document.getElementById('result-area'); const questionText = document.getElementById('question-text'); const optionsContainer = document.getElementById('options-container'); const scoreSpan = document.getElementById('score'); const correctCountSpan = document.getElementById('correct-count'); const wrongCountSpan = document.getElementById('wrong-count'); const percentageSpan = document.getElementById('percentage'); const restartButton = document.getElementById('restart-button'); const questionCounter = document.getElementById('question-counter'); const donationSection = document.getElementById('donation-section'); const donateButton = document.getElementById('donate-button'); const donationDetails = document.getElementById('donation-details'); const statusMessage = document.getElementById('status-message'); const nextQuestionButton = document.getElementById('next-question-button'); // Function to shuffle an array const shuffleArray = (array) => { for (let i = array.length - 1; i > 0; i--) { const j = Math.floor(Math.random() * (i + 1)); [array[i], array[j]] = [array[j], array[i]]; } }; // Function to display the current question const showQuestion = () => { if (currentQuestionIndex < questions.length) { const currentQuestion = questions[currentQuestionIndex]; questionCounter.textContent = `Question ${currentQuestionIndex + 1} / ${questions.length}`; questionText.textContent = currentQuestion.question; optionsContainer.innerHTML = ''; // Clear previous options statusMessage.classList.remove('show'); // Hide message nextQuestionButton.classList.add('hidden'); // Hide the next question button // Shuffle options for each question to prevent memorization // Create a copy so we don't shuffle the original array repeatedly if we restart let optionsCopy = [...currentQuestion.options]; shuffleArray(optionsCopy); optionsCopy.forEach(option => { const button = document.createElement('button'); button.textContent = option; button.classList.add( 'option-button', 'bg-blue-600', 'hover:bg-blue-700', 'text-white', 'font-semibold', 'py-3', 'px-4', 'rounded-xl', 'transition-all', 'duration-300', 'transform', 'hover:scale-105', 'shadow-lg' ); button.addEventListener('click', () => selectOption(option, button)); optionsContainer.appendChild(button); }); } else { showResult(); } }; // Function to handle option selection const selectOption = (selectedOption, button) => { const currentQuestion = questions[currentQuestionIndex]; // Disable all buttons after one is clicked const allOptions = optionsContainer.querySelectorAll('button'); allOptions.forEach(btn => btn.disabled = true); // Check if the selected answer is correct if (selectedOption === currentQuestion.answer) { score++; correctCount++; statusMessage.textContent = "Correct!"; statusMessage.style.color = "#4CAF50"; // Green color button.classList.add('correct-answer'); } else { wrongCount++; statusMessage.textContent = "Wrong!"; statusMessage.style.color = "#F44336"; // Red color button.classList.add('wrong-answer'); // Highlight the correct answer allOptions.forEach(btn => { if (btn.textContent === currentQuestion.answer) { btn.classList.add('correct-answer'); } }); } statusMessage.classList.add('show'); // Show the message // Show the next question button if not the last question if (currentQuestionIndex { currentQuestionIndex++; showQuestion(); }; // Function to display the final results const showResult = () => { quizArea.classList.add('hidden'); resultArea.classList.remove('hidden'); donationSection.classList.remove('hidden'); scoreSpan.textContent = score; correctCountSpan.textContent = correctCount; wrongCountSpan.textContent = wrongCount; const percentage = (score / questions.length) * 100; percentageSpan.textContent = `${percentage.toFixed(0)}%`; }; // Function to restart the quiz const restartQuiz = () => { currentQuestionIndex = 0; score = 0; correctCount = 0; wrongCount = 0; // Shuffle the question order for a new experience shuffleArray(questions); quizArea.classList.remove('hidden'); resultArea.classList.add('hidden'); donationSection.classList.add('hidden'); showQuestion(); }; // Event listeners if(nextQuestionButton) nextQuestionButton.addEventListener('click', nextQuestion); if(restartButton) restartButton.addEventListener('click', restartQuiz); if(donateButton) { donateButton.addEventListener('click', () => { donationDetails.classList.toggle('hidden'); }); } // Start the quiz when the page loads shuffleArray(questions); // Initial shuffle showQuestion(); });

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