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science/ocean
Ocean, properties/consposition/ocean currents
| Question | Answer |
|---|---|
| Cohesion | Responsible for molecules of water sticking together (the attraction of molecules that are alike.) |
| Adhesion | Responsible for water molecules sticking to other surfaces (the attraction of molecules that are not alike.) |
| Density | mass per unit volume of a material |
| What are the 3 states of water? | Solid, liquid, gas |
| What is evaporation? | The process by which water molecules in liquid water escape into the air as water vapor. |
| What is relative humidity? | The percentage of water vapor actually in the air compared to the amount the air can hold at a particular temperature. |
| What is condensation? | The process by which molecules of water vapor in the air become liquid water. |
| What is fog? | Suspension of water droplets or ice crystals close to or at Earth's surface. |
| What is an iceberg? | a large floating mass of ice detached from a glacier or ice sheet and carried out to sea. |
| How can icebergs float? | Because of the dissolved salts in ocean water, the water is denser than the iceberg causing it to float. |
| What are the two most important elements in sea water, besides hydrogen and oxygen? | Sodium and Chloride |
| Which ocean is the saltiest? | The Atlantic Ocean |
| Why can't you drink saltwater? | If you drink too much your body will dehydrate and your cells and organs will not be able to function properly. |
| What is salinity? | Salinity is a measure of the mass of dissolved solids in a mass of water. |
| What are the four criteria's scientists use when classifying ocean zones. | 1. Amount of Sunlight 2. Temperature 3. Salinity 4. Density |
| Why is river water sometimes salty near the ocean? | Water pours into the ocean and tides rise and fall so the water mixes. |
| Ocean water is _____ water? | Salt |
| What does sea level mean? | That the land is the same height or level as the sea. |
| The amount of salt in the ocean has/ has not changed? | has not |
| Why are rivers and lakes not salty? | The salt in there rivers/lakes flow toward the ocean. |
| What does the heat from the sun do to the water in the ocean leaving only salt behind? | It evaporates the water leaving only salt behind. |
| Warm air holds more or less heat than warm air? | less air |
| What is the most powerful ocean current (close to the Gulf Stream) , which is in which ocean? | Atlantic Ocean |
| Earth is the only known planet with oceans thats why Earth is the only planet with _______. | Life (Living things) |
Created by:
hannah.hronec
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