TWIG: L3 Disappearing Wall

The original purpose of the Great Wall of China was to:

• serve as a trade route

• act as a defense against invasions

• be a symbol of Chinese culture

• function as a transportation barrier

How many miles of the main section of the Great Wall have crumbled completely?

• 500 miles

• 1,000 miles

• 1,500 miles

• 2,000 miles

Tags

NGSS.MS-ESS2-2

Some of the causes of the Great Wall's deterioration are:

• Natural erosion and human activities

• Only natural erosion

• Only human activities

• Lack of maintenance

Tags

NGSS.MS-ESS3-4

How many tourists visit the Great Wall each year?

• 10 million

• 20 million

• 30 million

• 40 million

The Great Wall of China is deteriorating because:

• it is being affected by natural erosion and human activities.

• it is being renovated extensively.

• it is being protected by the government.

• it is being visited by too many tourists.

Tags

NGSS.MS-ESS2-2

Fill in the blank: The Great Wall of China will disappear if we do not respect its age and ________.

• fragility

• strength

• location

• height

What does the word 'deteriorated' mean?

• Improved

• Fell apart or became worse over time

• Remained the same

• Expanded