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States of Matter Flashcards

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States of Matter Flashcards

Read each mini flashcard, then solve the challenges. Matter is anything that has mass and takes up space. Think about familiar things you might find on a cold Canadian morning.

Flashcard 1: Solids

A solid keeps its own shape. Its particles are packed close together and vibrate in place. Examples: an ice cube, a rock, and a metal spoon.

Flashcard 2: Liquids

A liquid flows and takes the shape of its container. Its particles stay close together but can slide past one another. Examples: water, milk, and maple syrup.

Flashcard 3: Gases

A gas spreads out to fill the space available. Its particles are far apart and move freely in all directions. Air and water vapour are gases.

Sort the Clues

Use the flashcards to solve each challenge. For questions about particle motion, compare how freely particles can move in each state.

1.A frozen puddle keeps its shape when lifted. Which state of matter is the ice in?
  • Solid
  • Liquid
  • Gas
2.A drink is poured from a glass into a mug. It changes shape to fit the mug. What state is the drink?
3.Which state has particles that are far apart and move freely?
  • Solid
  • Liquid
  • Gas
4.Classify each item by its state at room temperature: a pencil, cooking oil, and air. Write solid, liquid, or gas for each.
5.Complete the particle clue: In a solid, particles are close together and mostly in place.
6.True or false: A liquid keeps the same shape when moved to a different container.
TrueFalse
7.Match each state of matter to its particle clue.
  • Solid
  • Liquid
  • Gas
  • Particles slide past one another
  • Particles are far apart and move freely
  • Particles vibrate in place
8.On a cold day, a puddle freezes into ice. Is it still made of water? Explain how you know.
9.A sealed balloon is filled with air. What state is the air, and what does it do to fill the balloon?

2 printable pages

  • States of matter flashcards introduce solids, liquids, and gases with particle models and examples.

    Page 1

  • Matter detective questions practise classifying materials and explaining particle behaviour and changes of state.

    Page 2

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