Rope bridges
How did they build the bridges?
By hand
The Inca road system was a massive ______ kilometer network.
40,000
What did they turn the Andean into?
A productive farmland creating flat planting surfaces.
The Machu Picchu is a _____ century Inca citadel.
15th
Some bridges could hold up to _______ pounds.
40,000
The Inca empire spanned from modern day Columbia to _____.
Chile
What did the microclimates protect the crops from?
Frost
What is a citadel?
a citadel is a castle with heavily fortified walls.
What material was used to make the bridges?
Braided grass
What did the Incas do when there were roads in the steep mountain regions?
They built long flights of stairs.
What was the primary purpose of terraces?
To create flat land for farming a prevent soil erosion.
The Incas built the Machu Picchu to be __________ proof.
Earthquake