| A | B |
|---|
| Order from Largest to smallest amount of water found on Earth | Ocean, glaciers, ice caps, ground water |
| A very small amount of the Earth's water is... | drinkable |
| Rivers, lakes and springs are sources of.... | fresh water |
| ?...makes up about 90% of the Earth's surface | Saltwater |
| Fresh water is used for.... | agriculture, personal hygiene and manufacturing |
| The flow of weathered and dissolved rock material toward the ocean .... | adds salts to the ocean water |
| The only substance that exists as a solid, liquid and gas in Earth's atmosphers | Water |
| Most water leaves the ocean through... | evaporation |
| Water returns to the ocean through | precipitation |
| What happens to water immediately after it evaporates | Water vapor rises until it cools and condenses |
| What happens to the total amount of water on Earth over time? | It remains constant over time |
| Why does deep water near the equator have a higher salinity than other parts of the ocean? | Deep water is colder with higher density and higher salinity. |
| Why is water colder the deeper you go in the ocean | Warm water is less dense than cold water so warm water stays on the top and cold water sinks. |
| Pressure and density increase with depth while.... | temperature decreses with depth |
| The height of a wave is influence by... | 1. speed of the wind; 2.increase in the length of time the wind blows; 3. increase in the distance over which the wind blows. |
| Cold ocean currents are most likely to be located at deeper ocean depts because... | cold water is more dense and sinks |
| Warm water currents are most likely located at shallower depths because... | warm water is less dense and moves to the top above cold water |
| Two main factors that influence ocean currents | Wind and density |
| The source of energy which drives the water cycle | Sun |
| Salinity | the measure of the amount of salts dissolved in seawater. |
| Warm currents carry warm water ... | from the tropics to the poles |
| What are the stages of the water cycle | Evaporation, condensation, precipitation, runoff |
| Evaporation | leaves salts behind |
| runnoff effects salinity because... | weathered rocks and materials are carrried to the ocean which adds salts |
