Explore the properties of water, the water cycle, and why water conservation matters.
Water is a universal solvent, meaning many substances dissolve in it. It exists in three states and is essential for all living things.
Why is water called a 'universal solvent'?
Because it can dissolve a very wide range of substances, more than most other liquids
Name the three states in which water can exist.
Solid (ice), liquid (water), and gas (water vapour/steam)
Why is water often called 'colourless, odourless, and tasteless'?
Because pure water has no colour, no smell, and no taste of its own -- these properties come from dissolved substances
The water cycle involves evaporation (water turning to vapour), condensation (vapour forming clouds), and precipitation (rain or snow falling back to Earth).
What happens during evaporation in the water cycle?
Water from oceans, rivers, and lakes turns into water vapour due to heat from the sun
What is precipitation?
Water falling back to Earth as rain, snow, or hail
What is precipitation?
Water falling back to Earth as rain, snow, or hail, after clouds become too heavy to hold the condensed water
1. Why is water called a universal solvent?
2. Name the three states of water.
3. What is evaporation?
4. What is condensation?
5. Why is water conservation important?
6. Name the three states water can exist in.
7. What causes water to evaporate from the surface of the ocean?
8. What happens to water vapour as it rises and cools in the atmosphere?
9. Why is water called a good solvent?
10. Name one way water conservation helps the environment.
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