Front

What is a skyscraper?

Back

A very tall building, usually over 100 meters high, that has many floors.

Front

Why were elevators invented?

Back

To make it easier to move between floors in tall buildings, as climbing many stairs is hard.

Front

What materials are commonly used to build skyscrapers?

Back

Steel, concrete, glass, and plastic.

Front

How tall can modern skyscrapers be?

Back

Some modern skyscrapers can be 100 stories tall or more.

Front

Which cities are known for having the first skyscrapers?

Back

Chicago, New York, and Detroit.

Front

What is the height of the tallest building mentioned in the passage?

Back

160 stories.

Front

What is the purpose of a skyscraper?

Back

To provide space for offices, apartments, and other uses in a small footprint.

Front

What is the role of steel in skyscraper construction?

Back

Steel provides strength and support, allowing buildings to be taller and more stable.

Front

What is concrete used for in skyscrapers?

Back

Concrete is used for floors, walls, and foundations, providing durability.

Front

How do skyscrapers impact city landscapes?

Back

They change the skyline and can create more space for people and businesses.