In the time that the Aztecs inhabited the Mexico valley they did not make many technical advances beside their form of agriculture, called chinampas. This is a method where Aztecs wove giant reed mats and placed them on top of the water. They made a fence around the mat and placed mud, silt, and rotten vegetables on it. Then, they planted willow trees on all sides of the chinampa. The willow trees bound the soil to keep it from washing away. The Aztecs planted many different types of crops on them. Some of them are corn, potatoes, tomatoes, chili peppers, squash and avocados. The plants' roots grew to the bottom of the lake so they would always have water. The chinampas were man-made islands created by piling up mud and vegetation from the bottom of the lake. The mud that the Aztecs used to build the chinampas was rich in minerals and ideal for growing crops.
The Aztecs also created a complex system of canals to be used as transportation this, experts theorize, is the only way that the Aztecs could have made such great temples.
The Aztecs also created a complex system of canals to be used as transportation this, experts theorize, is the only way that the Aztecs could have made such great temples.