Key Ideas
- Matter exists in 3 states: solid, liquid and gas.
- Whenever the matter changes its state, DURING the process of changing, the temperature remains constant (e.g melting point and boiling point)
Word Choices
- When describing the movement of the molecules, you need to remember the appropriate term for different state. Use the terms ‘vibrate‘ for solid and ‘move‘ for fluids (liquid + gas).