The Three States of MatterOxford AQA IGCSE Chemistry: Flashcards

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What are the three states of matter?

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What are the three states of matter?: Solid, liquid and gas
How are particles arranged in a solid?: Regularly and closely packed, vibrating in fixed positions
How do particles move in a liquid?: They move around and slide past each other, staying close together
How do particles behave in a gas?: They move quickly and randomly, far apart from each other
What causes a substance to change state?: Heating (adding energy) or cooling (removing energy)
What is melting?: The change of state from solid to liquid
What is condensing?: The change of state from gas to liquid
Do melting and boiling take in or release energy?: They take in energy from the surroundings
Do freezing and condensing take in or release energy?: They release energy to the surroundings
What happens to temperature during a change of state?: It stays constant, even though energy is still being transferred
Which state has particles with the most energy?: Gas
Why does heating cause melting or boiling?: It gives particles enough energy to overcome the forces holding them together