Chapter - 2 Oceans and Continents
1. The Earth’s Surface
- The Earth's surface is made up of land and water.
- Land areas are called continents.
- Water bodies are called oceans and seas.
- The Earth’s surface is covered by two main parts:
- Water (like oceans, seas, rivers, lakes, etc.)
- Land (like continents and islands)
- A smaller part of an ocean, partly enclosed by land.
- Still contains saltwater.
- Example: Arabian Sea, Mediterranean Sea
- A water body that is partly enclosed by land, but smaller than a gulf.
- It is wide and opens into an ocean or sea.
- Example: Bay of Bengal
- A large part of an ocean or sea that is deeply enclosed by land, more than a bay.
- Often has a narrow opening to the sea.
- Example: Gulf of Mexico, Gulf of Kutch
- Pacific Ocean – Largest and deepest.
- Atlantic Ocean – Second largest; separates the Americas from Europe and Africa.
- Indian Ocean – Named after India.
- Southern Ocean – Surrounds Antarctica.
- Arctic Ocean – Smallest and located around the North Pole
- A huge sea wave caused by an earthquake under the ocean.
- Can cause major destruction when it hits the land.
- Example: 2004 Indian Ocean Tsunami
- A powerful storm that forms over warm ocean water.
- Causes strong winds, heavy rain, and flooding.
- Called:
- Cyclone in the Indian Ocean
- Hurricane in the Atlantic
- Typhoon in the Pacific
- Oceans or seas can overflow due to cyclones, heavy rain, or high tides.
- This can cause coastal flooding.
- Strong winds from storms push ocean water toward the shore, flooding low-lying areas.
- Asia
- Africa
- North America
- South America
- Antarctica
- Europe
- Australia
- An island is a piece of land that is completely surrounded by water.
- It can be found in oceans, seas, rivers, or lakes.
- Islands can be small or large in size.
- Ocean send rain to the continent.
- This is the part of the Earth's water cycle.
- More than half of the world's osygen is produced by the oceans' Flora, which is why they are called "The Planet Lungs".
- Regulating the climate and sustaining life on Earth.
- In early times people used oceans and seas to move or migrate to other region.
- People also use for trade or conduct military sampaigns.
- It is source of food.
- Oceans also nourished the culture of coastal people all over the world.
- The Earth is covered with about ___% water.
- The earth is called __________ planet.
- The largest ocean is the __________ Ocean.
- An __________ is a piece of land that is completely surrounded by water
- There are __________Oceans.
- Whales live in the ocean. (True/False)
- Oceans do not affect the weather. (True/False)
- Coral reefs are found in deserts. (True/False)
- Plastic can harm ocean animals. (True/False)
- Oceans help in giving us rain. (True/False)