| A | B |
|---|
| It has mountains, Plains and ridges like land surfaces | Ocean Floor |
| Shallow area of sediment near the shore | Continental Shelf |
| Deepest part of the ocean | Ocean Trenches |
| The main difference between ocean water and lake water is that ocean water contains | Salt |
| It increases as a submarine dives deeper into the ocean | water pressure |
| The salinity of the Mediterranean Sea is greater than that of the Atlantic Ocean. This means that, compared to the atlantic ocean, the Mediterranean Sea is | Saltier |
| The most important reason that lakes and oceans have diffent types of animial life is that oceans have | water with more salt |
| Submarines have explored many parets of the ocean. As submarines descend, scientists observe that there is an increase in the | water Pressure |
| T or F: Sailors long ago would catch the current off the coast of Virginia. This current would help them get to Europe | True |
| Algae in the ocean provides much of the Earths | Oxygen |
| Algae and other producers need lots of sunlight. Most ocean algae would be found in the water | above the continental shelf |
| Part of the coral reef is shown. A coral reef is | an ecosystem |
| The saltiness of the ocean | Salinity |
| Causes of the ocean current | wind and water density |
| The shoreline, where the land meets the ocean, is part of the | continental shelf |
| T of F: The continental shelf is the deepest part of the ocean | False. Shelf is relatively shallow |
| T or F The shallow water of the continental shelf is teeming with life. | True |
| The floor of the continental shelf and slope is | Covered with sand, mud and rock and thick sediment |
| The deepest parts of the ocean are | ocean trenches |
| Ocean treaches are | deep canyons |
| Underwater mountain ranges are called | mid-ocean ridges |
| Ocean currents are caused by 2 things | 1. Wind Pattern 2. Differences in water density caused by temperture and salinity |
| Ocean current are not caused by | Earthquakes |
| Ocean flow like rivers in well defined circular patterns called | Currents |
| Ocean water is a mixture of 2 things | Gases and salts, especially sodium chloride |
| T of F: Ocean water is a mixture of sugar and salt | False |
| The ocean's salinity varies, depending on 2 things | runoff from nearby land and amount of evaporation |
| T or F: Marine organisms are dependent on the dissolved gases in the ocean for survival | True |
| The most important organisms of the ocean ecosystem are | phytoplankton |
| Phytoplankton are plant-like producers that get their energy through photosynthesis | from the sun |
| T or F Ocean life depends on phytoplankton which form the base of the ocean food webs | True |
| Most marine organisms live along here | continental self |
| Was are most commonly formed by | Wind |
| Salt in the ocean comes from | the weathering of rocks and minerals |
| Animal like Plankton | Zooplankton |
| The term "marine" in Marine Habitat refers to | Salt water (Ocean) |
