Plays remaining: 1
Part 4
Listen and answer questions 1 – 10.
Write NO MORE THAN ONE WORD AND/OR A NUMBER for each answer.
Complete the notes below.

Clay in Early Architecture: Building the Ancient World

Origins and Natural Properties
  • Clay has been used in construction since around BCE.
  • Early supplies of clay were found near rivers in a region called the Crescent.
  • Clay becomes hard when it is dried or .
Cob Construction
  • Builders mixed clay with or grass to make walls stronger.
  • Thick cob walls helped keep buildings in hot weather.
Mud Bricks and Adobe Construction
  • Mud bricks were dried in the before use.
  • The ancient city of in Mesopotamia was built mainly from mud bricks.
  • Wet clay was used as a between the rows of bricks.
Fired Bricks and Advanced Uses
  • Fired bricks were made in a , making them harder and more water resistant.
  • In some ancient cities, clay were used to carry water underground.