PRESENTATIONS AND MATERIALS PRESENTED IN MILAN
English version
Italian version
Some snaphots of Spanish team about what they lived in Milano.
Before conducting the experiment, the teacher explained several key concepts to help students understand the importance and science behind water purification. These included: the importance of clean water, sources of water contamination, different water purification methods, how filtration and chemical disinfection worked, why boiling was effective the role of sun un purification and the most important thing: safety precautions, that is, instructions on handling materials properly and make sure that all steps were followed correctly.
As part of our water purification workshop, we conducted experiments to analyze water quality and contamination. First, we measured the pH of the water using test strips to determine whether it was acidic, neutral, or alkaline, as extreme pH levels can indicate pollution. We also tested for nitrates and nitrites, which often come from agricultural runoff and industrial waste, using reagent strips that changed color based on their concentration.
Additionally, we examined microorganisms in the water with magnifying glasses and identification charts, identifying bacteria, protozoa, and algae. These experiments allowed us to understand how different contaminants affect water safety and reinforced the importance of purification methods.
Household bleach (unscented, 5–6% sodium hypochlorite)
Iodine solution or tablets
Water purification tablets (e.g., chlorine dioxide)
Droppers for measuring chemical additives
Empty plastic bottles or funnels
Sand (fine and coarse)
Gravel (small and large)
Activated charcoal
Coffee filters or cheesecloth
Cotton balls
Rubber bands
Scissors or a knife
The water purification experiment demonstrates different methods of making contaminated water safe to drink.
Participants started by creating a homemade water filter using sand, gravel, and activated charcoal to remove large particles and impurities. Next, they explored chemical purification by adding bleach or water purification tablets to kill harmful bacteria. The workshop also included boiling and distillation, where water iwas heated to remove pathogens and then condensed back into a clean container.
Lastly, participants tested solar disinfection by exposing water in clear bottles to direct sunlight. By the end of the experiment, they compared the clarity and safety of the treated water using basic testing tools.
Leonardo da Vinci played a crucial role in the development and improvement of the Navigli, the canal system in Milan, as well as in water management and distribution. During his time in Milan in the late 15th century, he was commissioned by Ludovico Sforza, Duke of Milan, to study and enhance the city's waterways, which were vital for transportation, irrigation, and commerce.
Leonardo’s work on canals and water distribution had a long-lasting impact on Milan’s infrastructure. Many of his concepts in hydraulic engineering influenced future engineers, and some of his designs are still relevant today. His Mitre Lock system became a standard feature in canal construction worldwide, proving his genius in both art and engineering.
Leonardo improved the Naviglio Grande and other canals, optimizing their structure to allow boats to travel more efficiently.
He designed a system of locks with gates, known as the "Mitre Gates", which are still used in modern canal systems today. This innovation helped regulate water levels and made navigation smoother.
He conducted extensive studies on fluid dynamics and water movement, recording his findings in detailed drawings and notes in the Codex Atlanticus.
His observations helped improve water management, irrigation, and flood prevention techniques in Milan.
Leonardo envisioned an advanced underground water supply system for Milan, with cleaner water distribution and efficient waste removal to improve public health.
Samuele Venturini, biologist and academic researcher, explained us the ecosystem around the channels and irrigation ditches. During our guided walking tour along the ditches and canals of Buccinasco, we learned about the diverse ecosystem that thrives around these waterways. We observed a variety of insects and animals that depend on the water for survival, including dragonflies, water striders, and mayflies, which are important indicators of water quality. We also saw amphibians like frogs and toads, which rely on the canals for breeding, as well as birds such as herons and ducks that feed on small fish and aquatic creatures.
Our guide explained how these species interact within the ecosystem and how the health of the water directly affects their survival. We also discussed the impact of human activity, pollution, and climate change on these habitats. Through this experience, we gained a deeper appreciation for the biodiversity of Buccinasco’s waterways and the importance of preserving them for future generations.
Experiencing Dragon Boat Race on Navigli
Turkish and Spanish team onboard
Getting ready.
Water, but in this case, in form of rain.
Art was also present in our mobility to Milan. Importance of water in Nature and free collaborative drawing. All these drawings will be finally be part of a bookshelf that was going to be place in the school premises as a remembrance of our stay in Milan.
After a long hard week.... we finally got our certificates of participation.