States of Matter
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States of Matter
Read the investigation
Mere puts a few ice cubes in a metal pot and warms it gently. The ice becomes liquid water. As the water gets hotter, bubbles form throughout it and water vapour leaves the pot. Later, the vapour touches a cool lid and forms tiny liquid droplets. If the liquid is cooled further, it freezes into solid ice again. The substance is still water at every stage: its particles have not changed into a different substance.
- Particles are far apart and travel freely in every direction.
- Particles are close together, can slide past one another and take the shape of their container.
- Particles are closely packed in fixed positions and vibrate about those positions.
- Particles do not move at all.
- They become larger particles.
- They gain energy and can move past one another more freely.
- They change into a different type of particle.
- They stop moving.
- Oxygen in the air
- Milk in a glass
- Water vapour in the air
- An ice cube
- Carbon dioxide in a fizzy drink's bubbles
2 printable pages
Page 1
Page 2
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