🧊 Solids, Liquids, and Gases

What you’ll learn

1. Three Kinds of StuffName the three states of matter and give a simple example of each.Everything around us is a solid, a liquid, or a gas. A solid keeps its shape, like a block. A liquid flows and pours, like juice. A gas floats and fills the room, like air. These three groups help us sort every kind of stuff.
2. Solids and LiquidsExplain that solids keep their shape while liquids take the shape of their container.A solid keeps its own shape no matter where you put it. A liquid does not. It flows and takes the shape of whatever container holds it. Comparing and matching everyday things helps us tell solids and liquids apart.
3. Gases All AroundUnderstand that gases, like air, spread out to fill their container, and sort all three states.A gas is stuff we usually cannot see, like the air. A gas floats and spreads out to fill all the space around it, which is why it puffs up a balloon. Knowing all three states lets us sort any object as a solid, a liquid, or a gas.

Questions this course answers

Grounded in trusted sources

• BBC Bitesize
• Britannica Kids
• Royal Society of Chemistry

Every Wunder lesson is built from real, reputable sources — never invented.

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