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Water quiz
A quiz on water.
| Question | Answer |
|---|---|
| True or false: Water is the only molecule that can be found as a solid, liquid, and gas. | True |
| What is the Coriolis Effect? | When the rotation of the Earth causes water to shift direction. |
| What are the main five oceans? | Pacific, Atlantic, Indian, Arctic, and Southern. |
| Define Salinity. | The mass of dissolved solids. |
| What zone of the ocean has the most plant life? | The Surface zone has the plant life |
| List the four criteria points scientists use to classify ocean zones. | Temperature, density, salinity,and amount of sunlight. |
| Why don't organisms underwater die when the pond freezes? | The whole pond doesn't freeze, and the surface traps the heat below it. |
| What is the scientific name for water? | H2O |
| Is Chloride from salt attracted to the Oxygen or Hydrogen in water and why? | Hydrogen because chloride is negatively charged, and hydrogen is positively charged. |
| What is the difference between cohesion and adhesion? | Adhesion is between different types of molecules, while cohesion is between the same type of molecule. |
| Is the density of ice higher or lower than water? | It is lower. |
| Why is salt used to melt ice? | Because it breaks up the particles and lowers the freezing point so it wont re-freeze as easily. |
| Define polarity. | When one side of a molecule is positive, while as the other side is negative, and they make the molecule neutral. |
| Why do density currents occur? | Because Ice forms, leaving salt behind, making the water much denser. |
| How do currents affect climate and weather? | The cold water makes it much colder because of the sea breeze. |
| What clockwork direction do the currents curve to in the southern hemisphere? | counter-clockwise. |
| Define what a gyre is. | A circular system of currents. |
| What is a density current? | When salt water pushes water from below. |
| What warms the cold water in the Great Ocean Conveyor Belt? | The sun. |
| True or false: The Great Ocean Conveyor Belt doesn't go through all the oceans? | False |
| Which currents are caused by wind? | Surface current and Upwelling current. |
| What is the highest salinity allowed for brackish water? | 17.5% |
| In the tropical region for salinity, what is the formula? | As depth increases, salinity decreases. |
| What causes the water droplets to form? | Cohesion between the water molecules. |