Our Earth

After completing this lesson, student must be able to:

  • Explain the kinds of agents that cause change on Earth's surface.
  • Draw map and find location.
  • Explain the importance of the map.
  • Explain about physical features of the North America.
  • Find climate and natural vegetation of North America.
  • Explain physical features and socio-economic life of South America.
  • Describe physical features of Africa.
  • Explain the reason of climate and weather change.
  • Define latitudes and longitudes.
  • List the zones and districts of Nepal.

Notes

North America

North America is the third largest continent in the world with an area of 24,227,000 sq.km. It extends from 18 degree north to 82 degree north latitude and longitudes from 20 degree west to 165 degree west. This note provides us the brief description about physical features and socio-economic life of North America.

South America

South America is the fourth largest continent in the world with an area of 17,819,000 sq.km which is just 12% of the world's total area. This note provides us the brief description about physical features and socio-economic life of South America.

Africa

Africa is the second largest continent in the world with an area of 30,330,000 sq.km which is about 22% of the total area of the world. This note provides us the information about physical features and socio-economic life of Africa.

Map of Nepal

Cartographers are those people who often make standard maps which are accurate and which use highly exact scales. This note provide us the information about steps of map work.

Earthquake

The shaking and vibrating of the earth surface is called an earthquake. The shaking may vary between very small tremors to a violent vibration. This note has information about an earthquake and its causes.

Representing Distances

Scale is the ratio between the distance in the map and the distance in a real ground. It shows how many times the map has been reduced from the real size of the area it represents. This note contains the description on finding distances in the map.

Factors Affecting Temperature

Many factors affects temperature. Among them, three factors that affect temperature are altitude, latitude and distance from sea. This note provides an information about the factors affecting climate.

Zones and Districts of Nepal

Nepal is a landlocked Himalayan country bordered by China to the north and India to the south, east, and west. This note has information about zones and districts of Nepal.