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Ocean Studying
Properties of water, compositions of oceans, ocean currents
Question | Answer |
---|---|
How can ice act as an insulator for fish since its cold? | It keeps the water below the ice at least four degrees. |
Is water denser as a solid or a liquid? | Liquid. |
What is polarity? | The connection between positive and negative particles. |
What happens if two water droplets collide? | They will form a bigger droplet. |
In what forms of matter can water exist on earth? | Solid, Liquid, Gas. |
Why does ice float? | It floats because water expands and becomes less dense as it freezes. |
Why do water molecules connect? | They connect with cohesion since they are the same substance. |
What happens when you add salt or sugar to water? | The salt or sugar dissolves because of adhesion. |
What are ocean currents caused by? | Wind and the amount of salt in the water. |
What is an ocean current? | A river of water flowing through the ocean. |
Has the amount of salt in the ocean changed? | No. |
Where is the Gulf stream? | The Atlantic ocean. |
What are Thermohaline currents? | Warm salty ocean currents. |
What do data marker buoys travel with? | Ocean currents. |
Is saltwater or freshwater denser? | Saltwater. |
Is the flow of currents in the northern and southern hemispheres the same or opposite? | Opposite. |
What is the average ocean salinity? | 35 ppt |
What ocean is the saltiest? | The Atlantic. |
What are four features of the ocean? | Continental margins, Abyssal plains, Mid-ocean ridges, and Ocean Trenches. |
What are the four criteria scientists use when classifying ocean zones? | Sunlight, temperature, salinity, density. |
What are the three ocean zones? | Surface, Middle, and Deep zones. |
As depth increases, salinity...? | Decreases. |
In polar regions density...? | Stays the same. |
What oceans contain sea ice? | The southern and arctic oceans. |