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Chapter 2
| Term | Definition |
|---|---|
| Ocean | What is a basin into which water has flowed an accumulated over millions of years? |
| Continental drift | What is the theory which states that continents have drifted apart as a result of the movement of tectonic plates? |
| Erosion | What is the movement of weathered particles? |
| Continental shelf | What is the submerged part of the continent between the coast and the edge of the basin? |
| Continental slope | What is the steeply sloping area from the edge of the continental shelf to the sea floor? |
| Abyssal plain | What are the very flat, wide plains on the sea floor? |
| Mid-ocean ridge | What are long, undersea mountain chains formed by volcanic eruptions rising in the middle of oceans? |
| Ocean trenches | What is formed when an ocean plate is forced to bend steeply beneath a continental plate? |
| Labrador current | What is a cold ocean current flowing down from the north along the northeast coast of Newfoundland? |
| Gulf Stream | What is a warm ocean current carrying warm water from the tropics to the Grand Banks of Newfoundland? |
| Upwelling | What is a vertical movement of water from the sea floor to the ocean surface? |
| Waves | What is formed when energy is transferred from wind (moving air)to the water? |
| Weathering | What is the breaking down of rock material into smaller particles? |
| Deposition | What process is occurring when eroded material is dropped or left behind? |
| Headlands | What are areas of the coastline that project farther out into the ocean than the land next to them? |
| Bays | What are areas of the coastline between headlands? |
| Tide | What is the slow rise and fall of the ocean influenced by the moon and the sun? |
| Spring tide | What are the largest tidal movements that occur when the Earth, the moon and the sun are in a line? |
| Neap tide | What are the smallest tidal movements that occur when the Earth and the moon are at right angles to each other? |
| Sea caves | What is formed when waves erode rocky shorelines to form hollow areas in a cliff? |
| Sea arches | What is formed when sea caves increase in size and wear their way through a cliff to the other side? |
| Sea stacks | What is formed when a sea arch collapses? |
| Breakwaters | What are a large pile of rocks built parallel to the shore to provide calm waters for harbours? |
| Jetty | What are structures that run perpendicular to shore and are designed to keep a channel open? |
| Vegetation | What are native plant species planted along coastlines so that their root systems can help reduce erosion? |
| Ocean current | What is a large amount of ocean water that moves in a particular and unchanging direction? |
| Sonar | What uses sound waves to probe the seabed? |
| Satellites | What orbits far above the earth and uses radar and infrared light to produce detailed pictures of the oceans? |
| Submersibles | What are small but strong vehicles capable of travelling to deep ocean depths and may be manned or unmanned? |
| Sea walls | What structure is used to reinforce the coastline with concrete, wood, steel or boulders and is built parallel to the beach? |
Created by:
mspemberton31
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