States of matter Flashcards
What is the particle theory?
All matter is made of tiny particles which are constantly moving. How quickly they move depends on how much energy they have.
Name the three states of matter.
Solid, liquid, gas.
Name the changes of matter.
Sublimation, deposition, condensation, evaporation, melting, solidification.
What is sublimation? Give an example.
The change of solid to gas. An example is dry ice.
What is deposition? Give an example.
The change of gas to solid. An example is water vapour freezing to form frost.
What is condensation? Give an example.
The change of gas to liquid. An example is water vapour that becomes clouds.
What is evaporation? Give an example.
The change of liquid to gas. An example is clothes drying.
What is melting? Give an example.
The change of solid to liquid. An example is ice cubes melting into water.
What is solidification? Give an example.
The change of liquid to solid. An example is water freezing into ice cubes.
The matter takes the shape, but not the volume, of its container. Name the state of matter.
Liquid.
The matter expands to fill all available space. Name the state of matter.
Gas.
The matter has a specific shape and occupies a volume that can be measured. Name the state of matter.
Solid.
A substance has a defined volume but an undefined shape. Name the state of matter.
Liquid.
What does the mass tell us about a substance?
How many particles there are, how much space it takes up.
What does volume measure?
The space objects occupy.
