Monk's Mound and Clay Construction

Archaeologists discovered a massive clay core at the base of Monk's Mound, which is part of the Cahokia site. Despite clay's tendency to shrink and crack as it dries, the structure has remained stable for over a thousand years. This is due to the mound builders' innovative use of soil buttresses that draw groundwater to keep the clay core moist. This method prevented structural collapse and allowed the construction of the largest earthen structure in the Western Hemisphere. The purpose of the mound and the fate of its builders remain unknown.

What did archaeologists find at the base of Monk's Mound?

• A giant core of clay

• An underground river

• A hidden chamber

• A treasure trove of artifacts

What is a major problem with using clay as a construction material?

• It is too expensive

• It is difficult to mold

• It shrinks and cracks when it dries

• It is not durable

How did the mound builders prevent the clay core from drying out?

• By building a roof over it

• By painting it with a sealant

• By using soil buttresses to draw groundwater

• By covering it with a tarp

What role do the soil buttresses play in the mound's construction?

• They provide decoration

• They act as a sponge to keep the clay wet

• They serve as a pathway

• They are used for storage

What natural elements help keep the clay core wet?

• Snow and ice

• Groundwater and rainwater

• Sunlight and wind

• Fog and mist

What is the significance of Monk's Mound in the Western Hemisphere?

• It is the most decorated monument

• It is the tallest building

• It is the largest earth structure

• It is the oldest known structure

What mystery remains about Monk's Mound?

• Its purpose and the fate of its builders

• The tools used to build it

• The materials used in its construction

• Its exact age