Water Fit For Drinking

3. Material from internal household and other building drains. It includes faecal waste and urine from toilets; shower and bath water; laundry water and kitchen water. Sewage can be treated and the water returned to the environment.
4. melt to form liquids and liquids evaporate to form gases
5. Not able to be dissolved in a liquid.
9. a technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates.
15. Matter dissolved in a liquid, such as water.
17. A type of matter
18. is anything that has mass and occupies space. Matter contracts or takes up less space when cooled. Matter expands or takes up more space when heated.
19. Composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid.
21. Water treatment method where water is boiled to steam and condensed in a separate reservoir. Contaminants with higher boiling points than water do not vaporize and remain in the boiling flask.
23. The process of changing from a liquid to a vapour when water molecules with enough kinetic energy leave the water surface to become water vapour.
24. a process to separate mixtures. Decanting is just allowing a mixture of solid and liquid to settle and separate by gravity.

1. The change of state from a gas to a liquid.
2. A mixture is a substance made by combining two or more different materials in a way that no chemical reaction occurs. A mixture can usually be separated back into its original components.
3. A substance (usually liquid) capable of dissolving one or more other substances
6. condense to form liquids and liquids freeze to form solids.
7. Able to be dissolved in a liquid
8. the solidification of atoms or molecules into a highly structured form called a crystal.
10. Techniques, The various ways used to isolate various compounds in a mixture.
11. A mixture that contains one or more substances (the solute) dissolved in another (the solvent).
12. An individual piece of matter. Particles include atoms and molecules.
13. The matter left in a container after evaporation or distillation has occurred.
14. a machine with a rapidly rotating container that applies centrifugal force to its contents, typically to separate fluids of different densities (e.g. cream from milk) or liquids from solids.
16. of Matter refers to things being solid, liquids or gases.
20. A process in which particulate matter in a liquid is removed by passing it through porous material.
22. the action of bringing a liquid to the temperature at which it bubbles and turns to vapour.