| A | B |
|---|
| ____ is the process of separating solid particles from a liquid by passing the mixture through a material that retains solid particles such as sand. | Filtration |
| The liquid collected after filtration is called the ___. | filtrate |
| The process of attracting and holding onto the surface of a material (such as charcoal) is known as ___. | adsorption |
| The process of taking up (soaking up) a fluid by a solid or liquid substance is known as ____. | absorption |
| The process of separating substances using differences in boiling point is known as ___. | distillation |
| Large quantities of groundwater are called ___. | aquifers |
| Another name for the water cycle is the ___. | hydrological cycle |
| The three main states (phases) of matter are ___, ___, and ___. | solid, liquid, gas |
| In order for water to change from the gaseous state to the liquid state, the process of ___ must take place. | condensation |
| In order for water to change from the liquid to the gaseous state, the process of ___ must take place. | evaporation |
| In order for water to change from the solid to the liquid state, the process of ___ must take place. | melting |
| In order for water to change from the liquid to the solid state, the process of ___ must take place. | freezing |
| At higher altitudes, solid water (snow, ice) can sometimes change directly from a solid into a gas. This process is known as ___. | sublimation |
| In terms of where the world's water is located, put the following places in order from where the greatest amount is held to the least amount. (Lakes, glaciers and icecaps, rivers, oceans, atmosphere, groundwater) | Oceans (most), glaciers and icecaps, groundwater, lakes, atmosphere, rivers (least) |
| Less than ___ % of the world's water is liquid freshwater. | 1% |
