wunder betaPhysics Classes for Kids
31 free physics classes for kids (Ages 6–12) on Wunder — short, fact-checked courses and lessons with narration and a quiz. Filter by age — each link is its own page, not a JavaScript toggle.
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When the verb is still happening
Learn the three -ing tenses that keep a verb in motion: I am walking, I was walking, I will be walking.
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Energy from the Sun to Food
Follow energy on its amazing journey from the Sun, into green plants, and along a food chain to the animals that eat them.
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Tides, Waves, and Currents
Why does the sea rise and fall, where do waves come from, and how does water travel across whole oceans? Meet the three great motions of the sea.
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Ocean Food Chains
Follow the sun's energy from tiny sea plants all the way up to the hungry shark, and see how every ocean animal is a link in the chain.
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Relative Motion
Are you sitting still right now — or hurtling through space? Both can be true. Discover how motion depends entirely on who is watching.
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Naming Forces
Give forces their names: pushes, pulls, gravity, friction and magnetism — and learn to spot which force is at work in the world around you.
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Gravity and Falling Objects
What goes up must come down — but why? Discover gravity, the invisible pull that drops apples, and the surprising truth about how things fall.
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Force and Motion Words
Speak like a scientist. Build the exact vocabulary of forces and motion — from contact and non-contact forces to balanced, unbalanced, and the newton.
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Contact and Non-Contact Forces
Some forces need a touch (friction, pushes) and some reach across a gap (gravity, magnetism, static). Learn to sort every force by one simple question: do they touch?
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Why Circuit Parts Behave Differently
Learn why electricity zips through some parts and struggles through others, meet the idea of resistance, and see how it makes bulbs and toasters work.
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What Uses Electricity at Home
From the fridge to the television to the kettle, our homes are full of things that run on electricity. Find out what uses it, what it does, and how to stay safe around it.
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What Makes a Bulb Light Up
Peek inside a light bulb and meet the tiny glowing wire called the filament. Learn how electricity flowing through it heats it white-hot to make light — and heat.
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What Happens When Things Collide
Discover how moving things carry energy, how a crash passes that energy along, and why some collisions bounce while others go splat.
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Types of Energy
Energy is what makes everything happen. Meet the many kinds — movement, heat, light, sound, electrical, chemical, and stored energy — and see how one kind can turn into another.
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Static Electricity and Sparks
From a zap off a door handle to a bolt of lightning, discover how charges build up, why opposites attract and likes repel, and how sparks leap.
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Speed and Energy
The faster something moves, the more energy it carries. Explore kinetic energy — how speed and weight give a moving object its power, and why that matters for staying safe.
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More Batteries, Brighter Bulb
Find out how a battery pushes electricity, why adding more batteries makes a bulb glow brighter, and what it takes to build a working circuit.
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How Energy Moves from Place to Place
Energy never stays still. It travels by heating, along wires, through light and sound, and by movement. Discover the different ways energy journeys from one place to another.
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Energy Stores and Transfers
Meet the five main energy stores, kinetic, gravitational, chemical, thermal, and elastic, and watch energy transfer between them in everyday things.
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Energy Can't Be Created or Destroyed
Explore one of science's biggest rules: energy is never made or lost, only moved and changed. Follow it through roller coasters, dams, and braking cars.
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Current and Voltage
Meet the two big ideas of electricity: current, the flow of charge, and voltage, the push that drives it, and see how they work together in a circuit.
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Conductors and Insulators
Some materials let electricity flow through them, and some block it. Find out why metals are conductors, why plastic and rubber are insulators, and how wires cleverly use both.
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Building an Energy-Converting Device
A torch, a buzzer, a motor — each takes electrical energy and turns it into something new. Learn how energy-converting devices work and how to build one yourself.
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How Matter Cycles in Nature
See how the same water, carbon, and nutrients are used again and again as matter cycles through nature while energy flows one way.
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Energy in Food Chains
Trace energy from the Sun through a food chain and discover why only about a tenth passes to each level, shaping the energy pyramid.
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Food Chains and Food Webs
Follow the flow of energy from the Sun through producers, consumers, and decomposers, and see how food chains link into tangled food webs.
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The Platypus!
Meet the platypus, a furry animal with a duck's bill that lays eggs, senses electricity, and glows in the dark, so strange that scientists once thought it was a joke.
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Energy
Energy makes everything move, glow, and go. Discover its awesome forms!
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Gravity
The invisible force that keeps your feet on the ground and planets in orbit.
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Electricity
Flip the switch and discover the amazing energy that powers your world!
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Food Chains
Follow the flow of energy from sun to snake in nature's food chain!
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