grade 3 ch 2

New Words

1. Atmosphere – The layer of air around the Earth.

2. Ocean – Very large bodies of water.

3. Continents – Large areas of land.

4. Crew – People who work on a ship.

5. Locate – To find.

Write short answers in your notebook:

1. What is a compass?
Ans - A compass is a tool that shows directions like north, south, east, and west.

2. What is a globe used for?
Ans - A globe is used to show the shape of the Earth, continents, oceans, and countries.

3. Meera sees a colourful book in the library. The book is filled with different kinds of maps. What is this book called?
Ans -This book is called an atlas.

Write long answers in your notebook:

1. What are maps? How do they help us?
Ans- Maps are drawings that show places on Earth, like countries, cities, rivers, and roads.
They help us find locations and understand where things are.

2. What is the difference between continents and oceans? Give examples of both.
Ans - Continents are large land areas like Asia and Africa.
Oceans are big water bodies like the Pacific Ocean and Atlantic Ocean.
Continents have land, while oceans are full of water.

3. How did Ferdinand Magellan discover that the Earth is round?
Ans - Ferdinand Magellan sailed around the world in a ship.
When his ship came back to the same place, people understood that the Earth is round.

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