Summary:
- Water is the only substance on Earth that is present in all three states of matter.
- All three phases may be present in a single location or in a region.
- Water expands when it freezes, even though all other substances contract.
- Water has high surface tension because polar molecules tend to stick together.
- Water vapor is invisible, but clouds that form when water vapor condenses are not.
- Use the resource below to answer the questions that follow.
- The three phases are solid (ice or snow), liquid (water), and gas (water vapor)