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Use the search form above to search for facts in the Kiddle encyclopedia (Kpedia). Below is a list of some articles and categories to help you research different topics for school homework help , homeschooling and general education . All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used for personal and educational purposes under Attribution-ShareAlike license, unless stated otherwise.
Biological processes
Health and medicine, earth science, measurement and units, timekeeping.
- Mathematics
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Computers and Internet
Energy and fuels, transportation, architecture and civil engineering, film, radio and television, prehistory and ancient world, middle ages and early modern, continents and major regions, bodies of water, mountains and deserts, authors, playwrights and poets, composers and musicians, explorers and travelers, film directors and screenwriters, inventors, scientists and mathematicians, philosophers and social scientists, political leaders, religious figures and theologians, world view and religion, family and relationships, business and economics, war and military, language and literature.
- Solar System
- Spaceflight
- Geomorphology
- Historical geology
- Hydrogeology
- Palaeontology
- Sedimentology
- Stratigraphy
- Structural geology
- Volcanology
- Engineering geology
- Petroleum geology
- Endangered species
- Domestication
- Photosynthesis
- Pigeons and doves
- Domestic pig
- Whales, dolphins and porpoises
- Endocrine system
- Large intestine
- Small intestine
- Common cold
- Immune system
- Inorganic chemistry
- Biochemistry
- Base (chemistry)
- Periodic table
- Carbohydrate
- Analytical chemistry
- Physical chemistry
- El Niño-Southern Oscillation
- Global warming
- Plate tectonics
- Tropical cyclone
- Acceleration
- Conservation of energy
- Ultraviolet
- Classical mechanics
- Magnetic field
- Gravitation
- Strong interaction
- Weak interaction
- Nuclear fission
- Quantum mechanics
- Radioactive decay
- General relativity
- Special relativity
- Semiconductor
- Speed of light
- Temperature
- Thermodynamics
- Measurement
- International System of Units
- Gregorian calendar
- Nut (fruit)
- System of linear equations
- Division (mathematics)
- Multiplication
- Subtraction
- Coordinate system
- Function (mathematics)
- Pythagorean theorem
- Mathematical proof
- Complex number
- Number theory
- Trigonometry
- Biotechnology
- Nanotechnology
- Encyclopedia
Electronics
- Electric current
- Transformer
- Hard disk drive
- Central processing unit
- Artificial intelligence
- World Wide Web
- Operating system
- Programming language
- Renewable energy
- Nuclear power
- Fossil fuel
- Internal combustion engine
- Steam engine
Arts and recreation
- Photography
- Calligraphy
- Architecture
- Burj Khalifa
- Great Wall of China
- Eiffel Tower
- Empire State Building
- Hagia Sophia
- Giza pyramid complex
- St. Peter's Basilica
- Statue of Liberty
- Three Gorges Dam
- Electronic music
- Specific musical instruments
- Brass instrument
- Alto_saxophone
- Bass guitar
- Tubular bells
- Contrabassoon
- Electric guitar
- Electric piano
- Synthesizer
- Cor anglais
- Horn (instrument)
- Harpsichord
- Double bass
- String instrument
- Wind instrument
- Woodwind instrument
- Percussion instrument
- Olympic Games
- Track and field
- Auto racing
- Association football
History and geography
- Mesopotamia
- Ancient Egypt
- Ancient Greece
- Roman Empire
- Han Dynasty
- Gupta Empire
- Abbasid Caliphate
- Age of Enlightenment
- Byzantine Empire
- Holy Roman Empire
- Hundred Years' War
- Middle Ages
- Mongol Empire
- Ming Dynasty
- Ottoman Empire
- Protestant Reformation
- Thirty Years' War
- Renaissance
- Tang Dynasty
- Arab-Israeli conflict
- American Civil War
- British Empire
- Cultural Revolution
- French Revolution
- Great Depression
- The Holocaust
- Industrial Revolution
- Nazi Germany
- Meiji Restoration
- Russian Revolution
- Qing Dynasty
- Treaty of Versailles
- Vietnam War
- World War I
- World War II
This section is for geographical concepts and for specific places.
- Middle East
- North America
- South America
- Afghanistan
- Democratic Republic of the Congo
- Netherlands
- New Zealand
- Saudi Arabia
- South Africa
- South Korea
- Switzerland
- United Kingdom
- United States
- Vatican City
- Buenos Aires
- Los Angeles
- Mexico City
- New York City
- Rio de Janeiro
- Saint Petersburg
- Washington, D.C.
- Amazon River
- Arctic Ocean
- Atlantic Ocean
- Caribbean Sea
- Caspian Sea
- Congo River
- Great Barrier Reef
- Great Lakes
- Indian Ocean
- Indus River
- Lake Baikal
- Lake Tanganyika
- Lake Victoria
- Mediterranean Sea
- Mississippi River
- Niger River
- Pacific Ocean
- Panama Canal
- Southern Ocean
- Volga River
- Yangtze River
- Yellow River
- Mount Everest
- Mount Kilimanjaro
- Rocky Mountains
- Sarah Bernhardt
- Charlie Chaplin
- Leonardo DiCaprio
- Meryl Streep
- Ingrid Bergman
- Henry Fonda
- Salvador Dalí
- Albrecht Dürer
- Vincent van Gogh
- Francisco de Goya
- Frida Kahlo
- Leonardo da Vinci
- Henri Matisse
- Michelangelo
- Pablo Picasso
- Peter Paul Rubens
- Andy Warhol
- Enid Blyton
- C. S. Lewis
- Hans Christian Andersen
- Geoffrey Chaucer
- Charles Dickens
- William Shakespeare
- Louis Armstrong
- Johann Sebastian Bach
- The Beatles
- Ludwig van Beethoven
- Johannes Brahms
- Frédéric Chopin
- Antonín Dvořák
- George Frideric Handel
- Wolfgang Amadeus Mozart
- Elvis Presley
- Giacomo Puccini
- Franz Schubert
- Igor Stravinsky
- Pyotr Ilyich Tchaikovsky
- Giuseppe Verdi
- Antonio Vivaldi
- Richard Wagner
- Céline Dion
- Michael Jackson
- Dolly Parton
- Ray Charles
- John Williams
- Glenn Miller
- John Lennon
- Paul McCartney
- Simon & Garfunkel
- Eric Clapton
- Keith Urban
- Roald Amundsen
- Neil Armstrong
- Jacques Cartier
- Christopher Columbus
- Hernán Cortés
- Yuri Gagarin
- Vasco da Gama
- Ibn Battuta
- Ferdinand Magellan
- Walt Disney
- Alfred Hitchcock
- Steven Spielberg
- Tim Berners-Lee
- Nicolaus Copernicus
- Marie Curie
- Charles Darwin
- Thomas Edison
- Albert Einstein
- Leonhard Euler
- Michael Faraday
- Enrico Fermi
- Joseph Fourier
- Galileo Galilei
- Carl Friedrich Gauss
- Johannes Gutenberg
- James Prescott Joule
- Johannes Kepler
- Al-Khwarizmi
- Gottfried Leibniz
- Carl Linnaeus
- James Clerk Maxwell
- Dmitri Mendeleev
- Isaac Newton
- Louis Pasteur
- Ernest Rutherford
- Erwin Schrödinger
- Nikola Tesla
- Alan Turing
- Noam Chomsky
- Sigmund Freud
- John Maynard Keynes
- Jean-Jacques Rousseau
- Jean-Paul Sartre
- Akbar the Great
- Alexander the Great
- Ashoka the Great
- Mustafa Kemal Atatürk
- Otto von Bismarck
- Simón Bolívar
- Julius Caesar
- Charlemagne
- Winston Churchill
- Constantine the Great
- Cyrus the Great
- Charles de Gaulle
- Elizabeth I
- Mahatma Gandhi
- Genghis Khan
- Che Guevara
- Adolf Hitler
- Joan of Arc
- Martin Luther King Jr.
- Vladimir Lenin
- Abraham Lincoln
- Louis XIV of France
- Rosa Luxemburg
- Nelson Mandela
- Jawaharlal Nehru
- Kwame Nkrumah
- Peter the Great
- Qin Shi Huang
- Franklin D. Roosevelt
- Joseph Stalin
- Suleiman the Magnificent
- Sun Yat-sen
- George Washington
- Thomas Aquinas
- Augustine of Hippo
- Gautama Buddha
- Martin Luther
- Paul the Apostle
Philosophy and psychology
- Epistemology
- Probability
- Fundamentalism
- Materialism
- Catholic Church
- Confucianism
- Zoroastrianism
Social sciences
- Civilization
- Colonialism
- Conservatism
- Dictatorship
- Globalization
- Imperialism
- Nationalism
- Japanese yen
- United States dollar
- Constitution
- Constructed language
- Conjunction
- Grammatical case
- Linguistics
- Suggest an edit .
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definition: a prediction or educated guess that can be tested and can be used to guide further study. This chapter explains scientists' new hypothesis about the birth of stars.
Learn about a hypothesis in science and what it means. Discover how to create a hypothesis as a step in the scientific method and how to test a hypothesis to see if it is correct.
Crafting a hypothesis isn’t just for scientists in white lab coats; even young budding researchers can join in the fun! When kids learn to frame their curious wonders as hypothesis statements, they pave the way for exciting …
What Is a Hypothesis for Kids? A hypothesis is more than an educated guess about what will happen during an experiment. It’s your prediction based on the information you already know. A hypothesis is part of the …
Learn about what a hypothesis is with this easy-to-understand explanation tailored for children. Discover how scientists make guesses to understand the world better.
definition 1: a proposed explanation that accounts for observed phenomena or known facts and that can be used to guide further investigation. He put forward the hypothesis that dreams …
Unlocking Curiosity: Discovering the Power of Hypotheses with Our Kid-Friendly Definition! 🚀🔍 Dive into the world of science with our exciting video!