Buds Public School, Dubai
Grade: 4 Lesson Notes – The Coastal Plains and Island Groups.
Word Builder:
Coast – a land near the sea
Gulf – a narrow inlet of sea surrounded by land on three sides.
Port – a town or a city near the coast where ships load and unload goods.
Lagoon – shallow salt water lakes separated from sea by rocks or sand bars.
Corals – sea animals with very hard body coverings.
Let Us Recall:
*The Coastal plains lie in the west and east of the Southern Plateau.
*The States lying on the coastal plains are Gujarat, Maharashtra, Goa, Karnataka, Kerala, Tamil Nadu, Puducherry, Andra Pradesh, Odisha and West Bengal.
*The major sea ports Mumbai, Kandla, Marmagao, Kochi, and Mangalore are lying on the western coastal plain. Tuticorin, Chennai, Puducherry, Vishakhapatnam, Paradip and Kolkata are lying on the eastern coastal plains.
*Divisions of the Western and Eastern coastal plains.
*There are two groups of islands in the Bay of Bengal and the Arabian Sea is Andaman and Nicobar Islands and Lakshadweep Islands.
Name the following:
1. Towers that warn the ships of the hidden rocks – Light houses.
2. The backwaters connected by canals – lagoons.
3. The biggest port on the western coast – Mumbai.
4. The third largest port of India – Chennai.
5. The southern half of the Andaman and Nicobar Islands – Nicobar Islands.
6. The biggest city on the Konkan coast – Mumbai.
Match the following:
- Chennai a. Seaport
- Vishakhapatnam b. Ship-building yard
- Lagoons c.Cash crops
- Rubber d. small lakes
- Cochin e. harbor
Write short answers.
1. What is the average width of the coastal plain?
Average width of the coastal plain is about 6000km from Gujarat in the west up to West Bengal in the east.
2. What is the capital city of Lakshadweep?
Kavaratti is the capital city of Lakshadweep.
3. Name the parts into which the western coastal plain and the eastern coastal plain are divided.
The Eastern Coastal plain is divided into two parts. The northern part is known as the northern Circars. The Southern part is called the Coromandel Coast. The western coastal plain is divided into three parts – the Gujarat Coast, The Konkan Coast and the Malabar Coast.
4. Where is cellular Jail? Why is it a national monument?
The Cellular Jail is in Port Blair. It is a very famous national monument because when India was ruled by the British, many Indian freedom fighters were kept in this jail.
5. What is the importance of Bombay High?
This port is rich in oil deposits. Large deposits of petroleum have been found in the sea bed near Mumbai. This region is called Bombay high.
6. Name four main rivers of the Eastern Coastal Plains.
Mahanadi, Godavari, Krishna and Kaveri are the main rivers of Eastern Coastal Plains.
7. What is a lagoon?
Lagoons are the small salt water lake separated from the open sea by sand-banks or coral reefs. It is connected to the sea by canals. Cochin situated near a lagoon.
Map:
Point out where western and eastern plains are located on a map of India. Point out Kannyakumari, Indira point and the Islands.
HOT question
Why do you think the Cellular Jail was built by the British on the faraway Andaman Islands?